Linux 4.16.11
[linux/fpc-iii.git] / drivers / scsi / lpfc / lpfc_sli.c
blob5f5528a123089882076e66b1e712a5f8529b2400
2 /*******************************************************************
3 * This file is part of the Emulex Linux Device Driver for *
4 * Fibre Channel Host Bus Adapters. *
5 * Copyright (C) 2017 Broadcom. All Rights Reserved. The term *
6 * “Broadcom” refers to Broadcom Limited and/or its subsidiaries. *
7 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
8 * EMULEX and SLI are trademarks of Emulex. *
9 * www.broadcom.com *
10 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
11 * *
12 * This program is free software; you can redistribute it and/or *
13 * modify it under the terms of version 2 of the GNU General *
14 * Public License as published by the Free Software Foundation. *
15 * This program is distributed in the hope that it will be useful. *
16 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
17 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
18 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
19 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
20 * TO BE LEGALLY INVALID. See the GNU General Public License for *
21 * more details, a copy of which can be found in the file COPYING *
22 * included with this package. *
23 *******************************************************************/
25 #include <linux/blkdev.h>
26 #include <linux/pci.h>
27 #include <linux/interrupt.h>
28 #include <linux/delay.h>
29 #include <linux/slab.h>
30 #include <linux/lockdep.h>
32 #include <scsi/scsi.h>
33 #include <scsi/scsi_cmnd.h>
34 #include <scsi/scsi_device.h>
35 #include <scsi/scsi_host.h>
36 #include <scsi/scsi_transport_fc.h>
37 #include <scsi/fc/fc_fs.h>
38 #include <linux/aer.h>
40 #include <linux/nvme-fc-driver.h>
42 #include "lpfc_hw4.h"
43 #include "lpfc_hw.h"
44 #include "lpfc_sli.h"
45 #include "lpfc_sli4.h"
46 #include "lpfc_nl.h"
47 #include "lpfc_disc.h"
48 #include "lpfc.h"
49 #include "lpfc_scsi.h"
50 #include "lpfc_nvme.h"
51 #include "lpfc_nvmet.h"
52 #include "lpfc_crtn.h"
53 #include "lpfc_logmsg.h"
54 #include "lpfc_compat.h"
55 #include "lpfc_debugfs.h"
56 #include "lpfc_vport.h"
57 #include "lpfc_version.h"
59 /* There are only four IOCB completion types. */
60 typedef enum _lpfc_iocb_type {
61 LPFC_UNKNOWN_IOCB,
62 LPFC_UNSOL_IOCB,
63 LPFC_SOL_IOCB,
64 LPFC_ABORT_IOCB
65 } lpfc_iocb_type;
68 /* Provide function prototypes local to this module. */
69 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
70 uint32_t);
71 static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
72 uint8_t *, uint32_t *);
73 static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *,
74 struct lpfc_iocbq *);
75 static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *,
76 struct hbq_dmabuf *);
77 static void lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
78 struct hbq_dmabuf *dmabuf);
79 static int lpfc_sli4_fp_handle_cqe(struct lpfc_hba *, struct lpfc_queue *,
80 struct lpfc_cqe *);
81 static int lpfc_sli4_post_sgl_list(struct lpfc_hba *, struct list_head *,
82 int);
83 static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba,
84 struct lpfc_eqe *eqe, uint32_t qidx);
85 static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba);
86 static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba);
87 static int lpfc_sli4_abort_nvme_io(struct lpfc_hba *phba,
88 struct lpfc_sli_ring *pring,
89 struct lpfc_iocbq *cmdiocb);
91 static IOCB_t *
92 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
94 return &iocbq->iocb;
97 /**
98 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
99 * @q: The Work Queue to operate on.
100 * @wqe: The work Queue Entry to put on the Work queue.
102 * This routine will copy the contents of @wqe to the next available entry on
103 * the @q. This function will then ring the Work Queue Doorbell to signal the
104 * HBA to start processing the Work Queue Entry. This function returns 0 if
105 * successful. If no entries are available on @q then this function will return
106 * -ENOMEM.
107 * The caller is expected to hold the hbalock when calling this routine.
109 static int
110 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
112 union lpfc_wqe *temp_wqe;
113 struct lpfc_register doorbell;
114 uint32_t host_index;
115 uint32_t idx;
117 /* sanity check on queue memory */
118 if (unlikely(!q))
119 return -ENOMEM;
120 temp_wqe = q->qe[q->host_index].wqe;
122 /* If the host has not yet processed the next entry then we are done */
123 idx = ((q->host_index + 1) % q->entry_count);
124 if (idx == q->hba_index) {
125 q->WQ_overflow++;
126 return -EBUSY;
128 q->WQ_posted++;
129 /* set consumption flag every once in a while */
130 if (!((q->host_index + 1) % q->entry_repost))
131 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
132 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
133 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
134 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
135 /* ensure WQE bcopy flushed before doorbell write */
136 wmb();
138 /* Update the host index before invoking device */
139 host_index = q->host_index;
141 q->host_index = idx;
143 /* Ring Doorbell */
144 doorbell.word0 = 0;
145 if (q->db_format == LPFC_DB_LIST_FORMAT) {
146 bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
147 bf_set(lpfc_wq_db_list_fm_index, &doorbell, host_index);
148 bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
149 } else if (q->db_format == LPFC_DB_RING_FORMAT) {
150 bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
151 bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
152 } else {
153 return -EINVAL;
155 writel(doorbell.word0, q->db_regaddr);
157 return 0;
161 * lpfc_sli4_wq_release - Updates internal hba index for WQ
162 * @q: The Work Queue to operate on.
163 * @index: The index to advance the hba index to.
165 * This routine will update the HBA index of a queue to reflect consumption of
166 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
167 * an entry the host calls this function to update the queue's internal
168 * pointers. This routine returns the number of entries that were consumed by
169 * the HBA.
171 static uint32_t
172 lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
174 uint32_t released = 0;
176 /* sanity check on queue memory */
177 if (unlikely(!q))
178 return 0;
180 if (q->hba_index == index)
181 return 0;
182 do {
183 q->hba_index = ((q->hba_index + 1) % q->entry_count);
184 released++;
185 } while (q->hba_index != index);
186 return released;
190 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
191 * @q: The Mailbox Queue to operate on.
192 * @wqe: The Mailbox Queue Entry to put on the Work queue.
194 * This routine will copy the contents of @mqe to the next available entry on
195 * the @q. This function will then ring the Work Queue Doorbell to signal the
196 * HBA to start processing the Work Queue Entry. This function returns 0 if
197 * successful. If no entries are available on @q then this function will return
198 * -ENOMEM.
199 * The caller is expected to hold the hbalock when calling this routine.
201 static uint32_t
202 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
204 struct lpfc_mqe *temp_mqe;
205 struct lpfc_register doorbell;
207 /* sanity check on queue memory */
208 if (unlikely(!q))
209 return -ENOMEM;
210 temp_mqe = q->qe[q->host_index].mqe;
212 /* If the host has not yet processed the next entry then we are done */
213 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
214 return -ENOMEM;
215 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
216 /* Save off the mailbox pointer for completion */
217 q->phba->mbox = (MAILBOX_t *)temp_mqe;
219 /* Update the host index before invoking device */
220 q->host_index = ((q->host_index + 1) % q->entry_count);
222 /* Ring Doorbell */
223 doorbell.word0 = 0;
224 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
225 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
226 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
227 return 0;
231 * lpfc_sli4_mq_release - Updates internal hba index for MQ
232 * @q: The Mailbox Queue to operate on.
234 * This routine will update the HBA index of a queue to reflect consumption of
235 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
236 * an entry the host calls this function to update the queue's internal
237 * pointers. This routine returns the number of entries that were consumed by
238 * the HBA.
240 static uint32_t
241 lpfc_sli4_mq_release(struct lpfc_queue *q)
243 /* sanity check on queue memory */
244 if (unlikely(!q))
245 return 0;
247 /* Clear the mailbox pointer for completion */
248 q->phba->mbox = NULL;
249 q->hba_index = ((q->hba_index + 1) % q->entry_count);
250 return 1;
254 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
255 * @q: The Event Queue to get the first valid EQE from
257 * This routine will get the first valid Event Queue Entry from @q, update
258 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
259 * the Queue (no more work to do), or the Queue is full of EQEs that have been
260 * processed, but not popped back to the HBA then this routine will return NULL.
262 static struct lpfc_eqe *
263 lpfc_sli4_eq_get(struct lpfc_queue *q)
265 struct lpfc_eqe *eqe;
266 uint32_t idx;
268 /* sanity check on queue memory */
269 if (unlikely(!q))
270 return NULL;
271 eqe = q->qe[q->hba_index].eqe;
273 /* If the next EQE is not valid then we are done */
274 if (!bf_get_le32(lpfc_eqe_valid, eqe))
275 return NULL;
276 /* If the host has not yet processed the next entry then we are done */
277 idx = ((q->hba_index + 1) % q->entry_count);
278 if (idx == q->host_index)
279 return NULL;
281 q->hba_index = idx;
284 * insert barrier for instruction interlock : data from the hardware
285 * must have the valid bit checked before it can be copied and acted
286 * upon. Speculative instructions were allowing a bcopy at the start
287 * of lpfc_sli4_fp_handle_wcqe(), which is called immediately
288 * after our return, to copy data before the valid bit check above
289 * was done. As such, some of the copied data was stale. The barrier
290 * ensures the check is before any data is copied.
292 mb();
293 return eqe;
297 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
298 * @q: The Event Queue to disable interrupts
301 static inline void
302 lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
304 struct lpfc_register doorbell;
306 doorbell.word0 = 0;
307 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
308 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
309 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
310 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
311 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
312 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
316 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
317 * @q: The Event Queue that the host has completed processing for.
318 * @arm: Indicates whether the host wants to arms this CQ.
320 * This routine will mark all Event Queue Entries on @q, from the last
321 * known completed entry to the last entry that was processed, as completed
322 * by clearing the valid bit for each completion queue entry. Then it will
323 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
324 * The internal host index in the @q will be updated by this routine to indicate
325 * that the host has finished processing the entries. The @arm parameter
326 * indicates that the queue should be rearmed when ringing the doorbell.
328 * This function will return the number of EQEs that were popped.
330 uint32_t
331 lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
333 uint32_t released = 0;
334 struct lpfc_eqe *temp_eqe;
335 struct lpfc_register doorbell;
337 /* sanity check on queue memory */
338 if (unlikely(!q))
339 return 0;
341 /* while there are valid entries */
342 while (q->hba_index != q->host_index) {
343 temp_eqe = q->qe[q->host_index].eqe;
344 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
345 released++;
346 q->host_index = ((q->host_index + 1) % q->entry_count);
348 if (unlikely(released == 0 && !arm))
349 return 0;
351 /* ring doorbell for number popped */
352 doorbell.word0 = 0;
353 if (arm) {
354 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
355 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
357 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
358 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
359 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
360 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
361 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
362 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
363 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
364 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
365 readl(q->phba->sli4_hba.EQCQDBregaddr);
366 return released;
370 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
371 * @q: The Completion Queue to get the first valid CQE from
373 * This routine will get the first valid Completion Queue Entry from @q, update
374 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
375 * the Queue (no more work to do), or the Queue is full of CQEs that have been
376 * processed, but not popped back to the HBA then this routine will return NULL.
378 static struct lpfc_cqe *
379 lpfc_sli4_cq_get(struct lpfc_queue *q)
381 struct lpfc_cqe *cqe;
382 uint32_t idx;
384 /* sanity check on queue memory */
385 if (unlikely(!q))
386 return NULL;
388 /* If the next CQE is not valid then we are done */
389 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
390 return NULL;
391 /* If the host has not yet processed the next entry then we are done */
392 idx = ((q->hba_index + 1) % q->entry_count);
393 if (idx == q->host_index)
394 return NULL;
396 cqe = q->qe[q->hba_index].cqe;
397 q->hba_index = idx;
400 * insert barrier for instruction interlock : data from the hardware
401 * must have the valid bit checked before it can be copied and acted
402 * upon. Given what was seen in lpfc_sli4_cq_get() of speculative
403 * instructions allowing action on content before valid bit checked,
404 * add barrier here as well. May not be needed as "content" is a
405 * single 32-bit entity here (vs multi word structure for cq's).
407 mb();
408 return cqe;
412 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
413 * @q: The Completion Queue that the host has completed processing for.
414 * @arm: Indicates whether the host wants to arms this CQ.
416 * This routine will mark all Completion queue entries on @q, from the last
417 * known completed entry to the last entry that was processed, as completed
418 * by clearing the valid bit for each completion queue entry. Then it will
419 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
420 * The internal host index in the @q will be updated by this routine to indicate
421 * that the host has finished processing the entries. The @arm parameter
422 * indicates that the queue should be rearmed when ringing the doorbell.
424 * This function will return the number of CQEs that were released.
426 uint32_t
427 lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
429 uint32_t released = 0;
430 struct lpfc_cqe *temp_qe;
431 struct lpfc_register doorbell;
433 /* sanity check on queue memory */
434 if (unlikely(!q))
435 return 0;
436 /* while there are valid entries */
437 while (q->hba_index != q->host_index) {
438 temp_qe = q->qe[q->host_index].cqe;
439 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
440 released++;
441 q->host_index = ((q->host_index + 1) % q->entry_count);
443 if (unlikely(released == 0 && !arm))
444 return 0;
446 /* ring doorbell for number popped */
447 doorbell.word0 = 0;
448 if (arm)
449 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
450 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
451 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
452 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
453 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
454 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
455 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
456 return released;
460 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
461 * @q: The Header Receive Queue to operate on.
462 * @wqe: The Receive Queue Entry to put on the Receive queue.
464 * This routine will copy the contents of @wqe to the next available entry on
465 * the @q. This function will then ring the Receive Queue Doorbell to signal the
466 * HBA to start processing the Receive Queue Entry. This function returns the
467 * index that the rqe was copied to if successful. If no entries are available
468 * on @q then this function will return -ENOMEM.
469 * The caller is expected to hold the hbalock when calling this routine.
472 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
473 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
475 struct lpfc_rqe *temp_hrqe;
476 struct lpfc_rqe *temp_drqe;
477 struct lpfc_register doorbell;
478 int hq_put_index;
479 int dq_put_index;
481 /* sanity check on queue memory */
482 if (unlikely(!hq) || unlikely(!dq))
483 return -ENOMEM;
484 hq_put_index = hq->host_index;
485 dq_put_index = dq->host_index;
486 temp_hrqe = hq->qe[hq_put_index].rqe;
487 temp_drqe = dq->qe[dq_put_index].rqe;
489 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
490 return -EINVAL;
491 if (hq_put_index != dq_put_index)
492 return -EINVAL;
493 /* If the host has not yet processed the next entry then we are done */
494 if (((hq_put_index + 1) % hq->entry_count) == hq->hba_index)
495 return -EBUSY;
496 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
497 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
499 /* Update the host index to point to the next slot */
500 hq->host_index = ((hq_put_index + 1) % hq->entry_count);
501 dq->host_index = ((dq_put_index + 1) % dq->entry_count);
502 hq->RQ_buf_posted++;
504 /* Ring The Header Receive Queue Doorbell */
505 if (!(hq->host_index % hq->entry_repost)) {
506 doorbell.word0 = 0;
507 if (hq->db_format == LPFC_DB_RING_FORMAT) {
508 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
509 hq->entry_repost);
510 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
511 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
512 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
513 hq->entry_repost);
514 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
515 hq->host_index);
516 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
517 } else {
518 return -EINVAL;
520 writel(doorbell.word0, hq->db_regaddr);
522 return hq_put_index;
526 * lpfc_sli4_rq_release - Updates internal hba index for RQ
527 * @q: The Header Receive Queue to operate on.
529 * This routine will update the HBA index of a queue to reflect consumption of
530 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
531 * consumed an entry the host calls this function to update the queue's
532 * internal pointers. This routine returns the number of entries that were
533 * consumed by the HBA.
535 static uint32_t
536 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
538 /* sanity check on queue memory */
539 if (unlikely(!hq) || unlikely(!dq))
540 return 0;
542 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
543 return 0;
544 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
545 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
546 return 1;
550 * lpfc_cmd_iocb - Get next command iocb entry in the ring
551 * @phba: Pointer to HBA context object.
552 * @pring: Pointer to driver SLI ring object.
554 * This function returns pointer to next command iocb entry
555 * in the command ring. The caller must hold hbalock to prevent
556 * other threads consume the next command iocb.
557 * SLI-2/SLI-3 provide different sized iocbs.
559 static inline IOCB_t *
560 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
562 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
563 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
567 * lpfc_resp_iocb - Get next response iocb entry in the ring
568 * @phba: Pointer to HBA context object.
569 * @pring: Pointer to driver SLI ring object.
571 * This function returns pointer to next response iocb entry
572 * in the response ring. The caller must hold hbalock to make sure
573 * that no other thread consume the next response iocb.
574 * SLI-2/SLI-3 provide different sized iocbs.
576 static inline IOCB_t *
577 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
579 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
580 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
584 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
585 * @phba: Pointer to HBA context object.
587 * This function is called with hbalock held. This function
588 * allocates a new driver iocb object from the iocb pool. If the
589 * allocation is successful, it returns pointer to the newly
590 * allocated iocb object else it returns NULL.
592 struct lpfc_iocbq *
593 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
595 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
596 struct lpfc_iocbq * iocbq = NULL;
598 lockdep_assert_held(&phba->hbalock);
600 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
601 if (iocbq)
602 phba->iocb_cnt++;
603 if (phba->iocb_cnt > phba->iocb_max)
604 phba->iocb_max = phba->iocb_cnt;
605 return iocbq;
609 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
610 * @phba: Pointer to HBA context object.
611 * @xritag: XRI value.
613 * This function clears the sglq pointer from the array of acive
614 * sglq's. The xritag that is passed in is used to index into the
615 * array. Before the xritag can be used it needs to be adjusted
616 * by subtracting the xribase.
618 * Returns sglq ponter = success, NULL = Failure.
620 struct lpfc_sglq *
621 __lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
623 struct lpfc_sglq *sglq;
625 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
626 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
627 return sglq;
631 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
632 * @phba: Pointer to HBA context object.
633 * @xritag: XRI value.
635 * This function returns the sglq pointer from the array of acive
636 * sglq's. The xritag that is passed in is used to index into the
637 * array. Before the xritag can be used it needs to be adjusted
638 * by subtracting the xribase.
640 * Returns sglq ponter = success, NULL = Failure.
642 struct lpfc_sglq *
643 __lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
645 struct lpfc_sglq *sglq;
647 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
648 return sglq;
652 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
653 * @phba: Pointer to HBA context object.
654 * @xritag: xri used in this exchange.
655 * @rrq: The RRQ to be cleared.
658 void
659 lpfc_clr_rrq_active(struct lpfc_hba *phba,
660 uint16_t xritag,
661 struct lpfc_node_rrq *rrq)
663 struct lpfc_nodelist *ndlp = NULL;
665 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
666 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
668 /* The target DID could have been swapped (cable swap)
669 * we should use the ndlp from the findnode if it is
670 * available.
672 if ((!ndlp) && rrq->ndlp)
673 ndlp = rrq->ndlp;
675 if (!ndlp)
676 goto out;
678 if (test_and_clear_bit(xritag, ndlp->active_rrqs_xri_bitmap)) {
679 rrq->send_rrq = 0;
680 rrq->xritag = 0;
681 rrq->rrq_stop_time = 0;
683 out:
684 mempool_free(rrq, phba->rrq_pool);
688 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
689 * @phba: Pointer to HBA context object.
691 * This function is called with hbalock held. This function
692 * Checks if stop_time (ratov from setting rrq active) has
693 * been reached, if it has and the send_rrq flag is set then
694 * it will call lpfc_send_rrq. If the send_rrq flag is not set
695 * then it will just call the routine to clear the rrq and
696 * free the rrq resource.
697 * The timer is set to the next rrq that is going to expire before
698 * leaving the routine.
701 void
702 lpfc_handle_rrq_active(struct lpfc_hba *phba)
704 struct lpfc_node_rrq *rrq;
705 struct lpfc_node_rrq *nextrrq;
706 unsigned long next_time;
707 unsigned long iflags;
708 LIST_HEAD(send_rrq);
710 spin_lock_irqsave(&phba->hbalock, iflags);
711 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
712 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
713 list_for_each_entry_safe(rrq, nextrrq,
714 &phba->active_rrq_list, list) {
715 if (time_after(jiffies, rrq->rrq_stop_time))
716 list_move(&rrq->list, &send_rrq);
717 else if (time_before(rrq->rrq_stop_time, next_time))
718 next_time = rrq->rrq_stop_time;
720 spin_unlock_irqrestore(&phba->hbalock, iflags);
721 if ((!list_empty(&phba->active_rrq_list)) &&
722 (!(phba->pport->load_flag & FC_UNLOADING)))
723 mod_timer(&phba->rrq_tmr, next_time);
724 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
725 list_del(&rrq->list);
726 if (!rrq->send_rrq)
727 /* this call will free the rrq */
728 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
729 else if (lpfc_send_rrq(phba, rrq)) {
730 /* if we send the rrq then the completion handler
731 * will clear the bit in the xribitmap.
733 lpfc_clr_rrq_active(phba, rrq->xritag,
734 rrq);
740 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
741 * @vport: Pointer to vport context object.
742 * @xri: The xri used in the exchange.
743 * @did: The targets DID for this exchange.
745 * returns NULL = rrq not found in the phba->active_rrq_list.
746 * rrq = rrq for this xri and target.
748 struct lpfc_node_rrq *
749 lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
751 struct lpfc_hba *phba = vport->phba;
752 struct lpfc_node_rrq *rrq;
753 struct lpfc_node_rrq *nextrrq;
754 unsigned long iflags;
756 if (phba->sli_rev != LPFC_SLI_REV4)
757 return NULL;
758 spin_lock_irqsave(&phba->hbalock, iflags);
759 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
760 if (rrq->vport == vport && rrq->xritag == xri &&
761 rrq->nlp_DID == did){
762 list_del(&rrq->list);
763 spin_unlock_irqrestore(&phba->hbalock, iflags);
764 return rrq;
767 spin_unlock_irqrestore(&phba->hbalock, iflags);
768 return NULL;
772 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
773 * @vport: Pointer to vport context object.
774 * @ndlp: Pointer to the lpfc_node_list structure.
775 * If ndlp is NULL Remove all active RRQs for this vport from the
776 * phba->active_rrq_list and clear the rrq.
777 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
779 void
780 lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
783 struct lpfc_hba *phba = vport->phba;
784 struct lpfc_node_rrq *rrq;
785 struct lpfc_node_rrq *nextrrq;
786 unsigned long iflags;
787 LIST_HEAD(rrq_list);
789 if (phba->sli_rev != LPFC_SLI_REV4)
790 return;
791 if (!ndlp) {
792 lpfc_sli4_vport_delete_els_xri_aborted(vport);
793 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
795 spin_lock_irqsave(&phba->hbalock, iflags);
796 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
797 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
798 list_move(&rrq->list, &rrq_list);
799 spin_unlock_irqrestore(&phba->hbalock, iflags);
801 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
802 list_del(&rrq->list);
803 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
808 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
809 * @phba: Pointer to HBA context object.
810 * @ndlp: Targets nodelist pointer for this exchange.
811 * @xritag the xri in the bitmap to test.
813 * This function is called with hbalock held. This function
814 * returns 0 = rrq not active for this xri
815 * 1 = rrq is valid for this xri.
818 lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
819 uint16_t xritag)
821 lockdep_assert_held(&phba->hbalock);
822 if (!ndlp)
823 return 0;
824 if (!ndlp->active_rrqs_xri_bitmap)
825 return 0;
826 if (test_bit(xritag, ndlp->active_rrqs_xri_bitmap))
827 return 1;
828 else
829 return 0;
833 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
834 * @phba: Pointer to HBA context object.
835 * @ndlp: nodelist pointer for this target.
836 * @xritag: xri used in this exchange.
837 * @rxid: Remote Exchange ID.
838 * @send_rrq: Flag used to determine if we should send rrq els cmd.
840 * This function takes the hbalock.
841 * The active bit is always set in the active rrq xri_bitmap even
842 * if there is no slot avaiable for the other rrq information.
844 * returns 0 rrq actived for this xri
845 * < 0 No memory or invalid ndlp.
848 lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
849 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
851 unsigned long iflags;
852 struct lpfc_node_rrq *rrq;
853 int empty;
855 if (!ndlp)
856 return -EINVAL;
858 if (!phba->cfg_enable_rrq)
859 return -EINVAL;
861 spin_lock_irqsave(&phba->hbalock, iflags);
862 if (phba->pport->load_flag & FC_UNLOADING) {
863 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
864 goto out;
868 * set the active bit even if there is no mem available.
870 if (NLP_CHK_FREE_REQ(ndlp))
871 goto out;
873 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
874 goto out;
876 if (!ndlp->active_rrqs_xri_bitmap)
877 goto out;
879 if (test_and_set_bit(xritag, ndlp->active_rrqs_xri_bitmap))
880 goto out;
882 spin_unlock_irqrestore(&phba->hbalock, iflags);
883 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
884 if (!rrq) {
885 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
886 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
887 " DID:0x%x Send:%d\n",
888 xritag, rxid, ndlp->nlp_DID, send_rrq);
889 return -EINVAL;
891 if (phba->cfg_enable_rrq == 1)
892 rrq->send_rrq = send_rrq;
893 else
894 rrq->send_rrq = 0;
895 rrq->xritag = xritag;
896 rrq->rrq_stop_time = jiffies +
897 msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
898 rrq->ndlp = ndlp;
899 rrq->nlp_DID = ndlp->nlp_DID;
900 rrq->vport = ndlp->vport;
901 rrq->rxid = rxid;
902 spin_lock_irqsave(&phba->hbalock, iflags);
903 empty = list_empty(&phba->active_rrq_list);
904 list_add_tail(&rrq->list, &phba->active_rrq_list);
905 phba->hba_flag |= HBA_RRQ_ACTIVE;
906 if (empty)
907 lpfc_worker_wake_up(phba);
908 spin_unlock_irqrestore(&phba->hbalock, iflags);
909 return 0;
910 out:
911 spin_unlock_irqrestore(&phba->hbalock, iflags);
912 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
913 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
914 " DID:0x%x Send:%d\n",
915 xritag, rxid, ndlp->nlp_DID, send_rrq);
916 return -EINVAL;
920 * __lpfc_sli_get_els_sglq - Allocates an iocb object from sgl pool
921 * @phba: Pointer to HBA context object.
922 * @piocb: Pointer to the iocbq.
924 * This function is called with the ring lock held. This function
925 * gets a new driver sglq object from the sglq list. If the
926 * list is not empty then it is successful, it returns pointer to the newly
927 * allocated sglq object else it returns NULL.
929 static struct lpfc_sglq *
930 __lpfc_sli_get_els_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
932 struct list_head *lpfc_els_sgl_list = &phba->sli4_hba.lpfc_els_sgl_list;
933 struct lpfc_sglq *sglq = NULL;
934 struct lpfc_sglq *start_sglq = NULL;
935 struct lpfc_scsi_buf *lpfc_cmd;
936 struct lpfc_nodelist *ndlp;
937 int found = 0;
939 lockdep_assert_held(&phba->hbalock);
941 if (piocbq->iocb_flag & LPFC_IO_FCP) {
942 lpfc_cmd = (struct lpfc_scsi_buf *) piocbq->context1;
943 ndlp = lpfc_cmd->rdata->pnode;
944 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
945 !(piocbq->iocb_flag & LPFC_IO_LIBDFC)) {
946 ndlp = piocbq->context_un.ndlp;
947 } else if (piocbq->iocb_flag & LPFC_IO_LIBDFC) {
948 if (piocbq->iocb_flag & LPFC_IO_LOOPBACK)
949 ndlp = NULL;
950 else
951 ndlp = piocbq->context_un.ndlp;
952 } else {
953 ndlp = piocbq->context1;
956 spin_lock(&phba->sli4_hba.sgl_list_lock);
957 list_remove_head(lpfc_els_sgl_list, sglq, struct lpfc_sglq, list);
958 start_sglq = sglq;
959 while (!found) {
960 if (!sglq)
961 break;
962 if (ndlp && ndlp->active_rrqs_xri_bitmap &&
963 test_bit(sglq->sli4_lxritag,
964 ndlp->active_rrqs_xri_bitmap)) {
965 /* This xri has an rrq outstanding for this DID.
966 * put it back in the list and get another xri.
968 list_add_tail(&sglq->list, lpfc_els_sgl_list);
969 sglq = NULL;
970 list_remove_head(lpfc_els_sgl_list, sglq,
971 struct lpfc_sglq, list);
972 if (sglq == start_sglq) {
973 list_add_tail(&sglq->list, lpfc_els_sgl_list);
974 sglq = NULL;
975 break;
976 } else
977 continue;
979 sglq->ndlp = ndlp;
980 found = 1;
981 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
982 sglq->state = SGL_ALLOCATED;
984 spin_unlock(&phba->sli4_hba.sgl_list_lock);
985 return sglq;
989 * __lpfc_sli_get_nvmet_sglq - Allocates an iocb object from sgl pool
990 * @phba: Pointer to HBA context object.
991 * @piocb: Pointer to the iocbq.
993 * This function is called with the sgl_list lock held. This function
994 * gets a new driver sglq object from the sglq list. If the
995 * list is not empty then it is successful, it returns pointer to the newly
996 * allocated sglq object else it returns NULL.
998 struct lpfc_sglq *
999 __lpfc_sli_get_nvmet_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
1001 struct list_head *lpfc_nvmet_sgl_list;
1002 struct lpfc_sglq *sglq = NULL;
1004 lpfc_nvmet_sgl_list = &phba->sli4_hba.lpfc_nvmet_sgl_list;
1006 lockdep_assert_held(&phba->sli4_hba.sgl_list_lock);
1008 list_remove_head(lpfc_nvmet_sgl_list, sglq, struct lpfc_sglq, list);
1009 if (!sglq)
1010 return NULL;
1011 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
1012 sglq->state = SGL_ALLOCATED;
1013 return sglq;
1017 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
1018 * @phba: Pointer to HBA context object.
1020 * This function is called with no lock held. This function
1021 * allocates a new driver iocb object from the iocb pool. If the
1022 * allocation is successful, it returns pointer to the newly
1023 * allocated iocb object else it returns NULL.
1025 struct lpfc_iocbq *
1026 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
1028 struct lpfc_iocbq * iocbq = NULL;
1029 unsigned long iflags;
1031 spin_lock_irqsave(&phba->hbalock, iflags);
1032 iocbq = __lpfc_sli_get_iocbq(phba);
1033 spin_unlock_irqrestore(&phba->hbalock, iflags);
1034 return iocbq;
1038 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
1039 * @phba: Pointer to HBA context object.
1040 * @iocbq: Pointer to driver iocb object.
1042 * This function is called with hbalock held to release driver
1043 * iocb object to the iocb pool. The iotag in the iocb object
1044 * does not change for each use of the iocb object. This function
1045 * clears all other fields of the iocb object when it is freed.
1046 * The sqlq structure that holds the xritag and phys and virtual
1047 * mappings for the scatter gather list is retrieved from the
1048 * active array of sglq. The get of the sglq pointer also clears
1049 * the entry in the array. If the status of the IO indiactes that
1050 * this IO was aborted then the sglq entry it put on the
1051 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
1052 * IO has good status or fails for any other reason then the sglq
1053 * entry is added to the free list (lpfc_els_sgl_list).
1055 static void
1056 __lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1058 struct lpfc_sglq *sglq;
1059 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1060 unsigned long iflag = 0;
1061 struct lpfc_sli_ring *pring;
1063 lockdep_assert_held(&phba->hbalock);
1065 if (iocbq->sli4_xritag == NO_XRI)
1066 sglq = NULL;
1067 else
1068 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1071 if (sglq) {
1072 if (iocbq->iocb_flag & LPFC_IO_NVMET) {
1073 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1074 iflag);
1075 sglq->state = SGL_FREED;
1076 sglq->ndlp = NULL;
1077 list_add_tail(&sglq->list,
1078 &phba->sli4_hba.lpfc_nvmet_sgl_list);
1079 spin_unlock_irqrestore(
1080 &phba->sli4_hba.sgl_list_lock, iflag);
1081 goto out;
1084 pring = phba->sli4_hba.els_wq->pring;
1085 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1086 (sglq->state != SGL_XRI_ABORTED)) {
1087 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1088 iflag);
1089 list_add(&sglq->list,
1090 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1091 spin_unlock_irqrestore(
1092 &phba->sli4_hba.sgl_list_lock, iflag);
1093 } else {
1094 spin_lock_irqsave(&phba->sli4_hba.sgl_list_lock,
1095 iflag);
1096 sglq->state = SGL_FREED;
1097 sglq->ndlp = NULL;
1098 list_add_tail(&sglq->list,
1099 &phba->sli4_hba.lpfc_els_sgl_list);
1100 spin_unlock_irqrestore(
1101 &phba->sli4_hba.sgl_list_lock, iflag);
1103 /* Check if TXQ queue needs to be serviced */
1104 if (!list_empty(&pring->txq))
1105 lpfc_worker_wake_up(phba);
1109 out:
1111 * Clean all volatile data fields, preserve iotag and node struct.
1113 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1114 iocbq->sli4_lxritag = NO_XRI;
1115 iocbq->sli4_xritag = NO_XRI;
1116 iocbq->iocb_flag &= ~(LPFC_IO_NVME | LPFC_IO_NVMET |
1117 LPFC_IO_NVME_LS);
1118 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1123 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1124 * @phba: Pointer to HBA context object.
1125 * @iocbq: Pointer to driver iocb object.
1127 * This function is called with hbalock held to release driver
1128 * iocb object to the iocb pool. The iotag in the iocb object
1129 * does not change for each use of the iocb object. This function
1130 * clears all other fields of the iocb object when it is freed.
1132 static void
1133 __lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1135 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1137 lockdep_assert_held(&phba->hbalock);
1140 * Clean all volatile data fields, preserve iotag and node struct.
1142 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1143 iocbq->sli4_xritag = NO_XRI;
1144 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1148 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1149 * @phba: Pointer to HBA context object.
1150 * @iocbq: Pointer to driver iocb object.
1152 * This function is called with hbalock held to release driver
1153 * iocb object to the iocb pool. The iotag in the iocb object
1154 * does not change for each use of the iocb object. This function
1155 * clears all other fields of the iocb object when it is freed.
1157 static void
1158 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1160 lockdep_assert_held(&phba->hbalock);
1162 phba->__lpfc_sli_release_iocbq(phba, iocbq);
1163 phba->iocb_cnt--;
1167 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1168 * @phba: Pointer to HBA context object.
1169 * @iocbq: Pointer to driver iocb object.
1171 * This function is called with no lock held to release the iocb to
1172 * iocb pool.
1174 void
1175 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1177 unsigned long iflags;
1180 * Clean all volatile data fields, preserve iotag and node struct.
1182 spin_lock_irqsave(&phba->hbalock, iflags);
1183 __lpfc_sli_release_iocbq(phba, iocbq);
1184 spin_unlock_irqrestore(&phba->hbalock, iflags);
1188 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1189 * @phba: Pointer to HBA context object.
1190 * @iocblist: List of IOCBs.
1191 * @ulpstatus: ULP status in IOCB command field.
1192 * @ulpWord4: ULP word-4 in IOCB command field.
1194 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1195 * on the list by invoking the complete callback function associated with the
1196 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1197 * fields.
1199 void
1200 lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1201 uint32_t ulpstatus, uint32_t ulpWord4)
1203 struct lpfc_iocbq *piocb;
1205 while (!list_empty(iocblist)) {
1206 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1207 if (!piocb->iocb_cmpl)
1208 lpfc_sli_release_iocbq(phba, piocb);
1209 else {
1210 piocb->iocb.ulpStatus = ulpstatus;
1211 piocb->iocb.un.ulpWord[4] = ulpWord4;
1212 (piocb->iocb_cmpl) (phba, piocb, piocb);
1215 return;
1219 * lpfc_sli_iocb_cmd_type - Get the iocb type
1220 * @iocb_cmnd: iocb command code.
1222 * This function is called by ring event handler function to get the iocb type.
1223 * This function translates the iocb command to an iocb command type used to
1224 * decide the final disposition of each completed IOCB.
1225 * The function returns
1226 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1227 * LPFC_SOL_IOCB if it is a solicited iocb completion
1228 * LPFC_ABORT_IOCB if it is an abort iocb
1229 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1231 * The caller is not required to hold any lock.
1233 static lpfc_iocb_type
1234 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1236 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1238 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1239 return 0;
1241 switch (iocb_cmnd) {
1242 case CMD_XMIT_SEQUENCE_CR:
1243 case CMD_XMIT_SEQUENCE_CX:
1244 case CMD_XMIT_BCAST_CN:
1245 case CMD_XMIT_BCAST_CX:
1246 case CMD_ELS_REQUEST_CR:
1247 case CMD_ELS_REQUEST_CX:
1248 case CMD_CREATE_XRI_CR:
1249 case CMD_CREATE_XRI_CX:
1250 case CMD_GET_RPI_CN:
1251 case CMD_XMIT_ELS_RSP_CX:
1252 case CMD_GET_RPI_CR:
1253 case CMD_FCP_IWRITE_CR:
1254 case CMD_FCP_IWRITE_CX:
1255 case CMD_FCP_IREAD_CR:
1256 case CMD_FCP_IREAD_CX:
1257 case CMD_FCP_ICMND_CR:
1258 case CMD_FCP_ICMND_CX:
1259 case CMD_FCP_TSEND_CX:
1260 case CMD_FCP_TRSP_CX:
1261 case CMD_FCP_TRECEIVE_CX:
1262 case CMD_FCP_AUTO_TRSP_CX:
1263 case CMD_ADAPTER_MSG:
1264 case CMD_ADAPTER_DUMP:
1265 case CMD_XMIT_SEQUENCE64_CR:
1266 case CMD_XMIT_SEQUENCE64_CX:
1267 case CMD_XMIT_BCAST64_CN:
1268 case CMD_XMIT_BCAST64_CX:
1269 case CMD_ELS_REQUEST64_CR:
1270 case CMD_ELS_REQUEST64_CX:
1271 case CMD_FCP_IWRITE64_CR:
1272 case CMD_FCP_IWRITE64_CX:
1273 case CMD_FCP_IREAD64_CR:
1274 case CMD_FCP_IREAD64_CX:
1275 case CMD_FCP_ICMND64_CR:
1276 case CMD_FCP_ICMND64_CX:
1277 case CMD_FCP_TSEND64_CX:
1278 case CMD_FCP_TRSP64_CX:
1279 case CMD_FCP_TRECEIVE64_CX:
1280 case CMD_GEN_REQUEST64_CR:
1281 case CMD_GEN_REQUEST64_CX:
1282 case CMD_XMIT_ELS_RSP64_CX:
1283 case DSSCMD_IWRITE64_CR:
1284 case DSSCMD_IWRITE64_CX:
1285 case DSSCMD_IREAD64_CR:
1286 case DSSCMD_IREAD64_CX:
1287 type = LPFC_SOL_IOCB;
1288 break;
1289 case CMD_ABORT_XRI_CN:
1290 case CMD_ABORT_XRI_CX:
1291 case CMD_CLOSE_XRI_CN:
1292 case CMD_CLOSE_XRI_CX:
1293 case CMD_XRI_ABORTED_CX:
1294 case CMD_ABORT_MXRI64_CN:
1295 case CMD_XMIT_BLS_RSP64_CX:
1296 type = LPFC_ABORT_IOCB;
1297 break;
1298 case CMD_RCV_SEQUENCE_CX:
1299 case CMD_RCV_ELS_REQ_CX:
1300 case CMD_RCV_SEQUENCE64_CX:
1301 case CMD_RCV_ELS_REQ64_CX:
1302 case CMD_ASYNC_STATUS:
1303 case CMD_IOCB_RCV_SEQ64_CX:
1304 case CMD_IOCB_RCV_ELS64_CX:
1305 case CMD_IOCB_RCV_CONT64_CX:
1306 case CMD_IOCB_RET_XRI64_CX:
1307 type = LPFC_UNSOL_IOCB;
1308 break;
1309 case CMD_IOCB_XMIT_MSEQ64_CR:
1310 case CMD_IOCB_XMIT_MSEQ64_CX:
1311 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1312 case CMD_IOCB_RCV_ELS_LIST64_CX:
1313 case CMD_IOCB_CLOSE_EXTENDED_CN:
1314 case CMD_IOCB_ABORT_EXTENDED_CN:
1315 case CMD_IOCB_RET_HBQE64_CN:
1316 case CMD_IOCB_FCP_IBIDIR64_CR:
1317 case CMD_IOCB_FCP_IBIDIR64_CX:
1318 case CMD_IOCB_FCP_ITASKMGT64_CX:
1319 case CMD_IOCB_LOGENTRY_CN:
1320 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1321 printk("%s - Unhandled SLI-3 Command x%x\n",
1322 __func__, iocb_cmnd);
1323 type = LPFC_UNKNOWN_IOCB;
1324 break;
1325 default:
1326 type = LPFC_UNKNOWN_IOCB;
1327 break;
1330 return type;
1334 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1335 * @phba: Pointer to HBA context object.
1337 * This function is called from SLI initialization code
1338 * to configure every ring of the HBA's SLI interface. The
1339 * caller is not required to hold any lock. This function issues
1340 * a config_ring mailbox command for each ring.
1341 * This function returns zero if successful else returns a negative
1342 * error code.
1344 static int
1345 lpfc_sli_ring_map(struct lpfc_hba *phba)
1347 struct lpfc_sli *psli = &phba->sli;
1348 LPFC_MBOXQ_t *pmb;
1349 MAILBOX_t *pmbox;
1350 int i, rc, ret = 0;
1352 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1353 if (!pmb)
1354 return -ENOMEM;
1355 pmbox = &pmb->u.mb;
1356 phba->link_state = LPFC_INIT_MBX_CMDS;
1357 for (i = 0; i < psli->num_rings; i++) {
1358 lpfc_config_ring(phba, i, pmb);
1359 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1360 if (rc != MBX_SUCCESS) {
1361 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1362 "0446 Adapter failed to init (%d), "
1363 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1364 "ring %d\n",
1365 rc, pmbox->mbxCommand,
1366 pmbox->mbxStatus, i);
1367 phba->link_state = LPFC_HBA_ERROR;
1368 ret = -ENXIO;
1369 break;
1372 mempool_free(pmb, phba->mbox_mem_pool);
1373 return ret;
1377 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1378 * @phba: Pointer to HBA context object.
1379 * @pring: Pointer to driver SLI ring object.
1380 * @piocb: Pointer to the driver iocb object.
1382 * This function is called with hbalock held. The function adds the
1383 * new iocb to txcmplq of the given ring. This function always returns
1384 * 0. If this function is called for ELS ring, this function checks if
1385 * there is a vport associated with the ELS command. This function also
1386 * starts els_tmofunc timer if this is an ELS command.
1388 static int
1389 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1390 struct lpfc_iocbq *piocb)
1392 lockdep_assert_held(&phba->hbalock);
1394 BUG_ON(!piocb);
1396 list_add_tail(&piocb->list, &pring->txcmplq);
1397 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
1399 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1400 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1401 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
1402 BUG_ON(!piocb->vport);
1403 if (!(piocb->vport->load_flag & FC_UNLOADING))
1404 mod_timer(&piocb->vport->els_tmofunc,
1405 jiffies +
1406 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
1409 return 0;
1413 * lpfc_sli_ringtx_get - Get first element of the txq
1414 * @phba: Pointer to HBA context object.
1415 * @pring: Pointer to driver SLI ring object.
1417 * This function is called with hbalock held to get next
1418 * iocb in txq of the given ring. If there is any iocb in
1419 * the txq, the function returns first iocb in the list after
1420 * removing the iocb from the list, else it returns NULL.
1422 struct lpfc_iocbq *
1423 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1425 struct lpfc_iocbq *cmd_iocb;
1427 lockdep_assert_held(&phba->hbalock);
1429 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1430 return cmd_iocb;
1434 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1435 * @phba: Pointer to HBA context object.
1436 * @pring: Pointer to driver SLI ring object.
1438 * This function is called with hbalock held and the caller must post the
1439 * iocb without releasing the lock. If the caller releases the lock,
1440 * iocb slot returned by the function is not guaranteed to be available.
1441 * The function returns pointer to the next available iocb slot if there
1442 * is available slot in the ring, else it returns NULL.
1443 * If the get index of the ring is ahead of the put index, the function
1444 * will post an error attention event to the worker thread to take the
1445 * HBA to offline state.
1447 static IOCB_t *
1448 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1450 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
1451 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
1453 lockdep_assert_held(&phba->hbalock);
1455 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1456 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1457 pring->sli.sli3.next_cmdidx = 0;
1459 if (unlikely(pring->sli.sli3.local_getidx ==
1460 pring->sli.sli3.next_cmdidx)) {
1462 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
1464 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
1465 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1466 "0315 Ring %d issue: portCmdGet %d "
1467 "is bigger than cmd ring %d\n",
1468 pring->ringno,
1469 pring->sli.sli3.local_getidx,
1470 max_cmd_idx);
1472 phba->link_state = LPFC_HBA_ERROR;
1474 * All error attention handlers are posted to
1475 * worker thread
1477 phba->work_ha |= HA_ERATT;
1478 phba->work_hs = HS_FFER3;
1480 lpfc_worker_wake_up(phba);
1482 return NULL;
1485 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
1486 return NULL;
1489 return lpfc_cmd_iocb(phba, pring);
1493 * lpfc_sli_next_iotag - Get an iotag for the iocb
1494 * @phba: Pointer to HBA context object.
1495 * @iocbq: Pointer to driver iocb object.
1497 * This function gets an iotag for the iocb. If there is no unused iotag and
1498 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1499 * array and assigns a new iotag.
1500 * The function returns the allocated iotag if successful, else returns zero.
1501 * Zero is not a valid iotag.
1502 * The caller is not required to hold any lock.
1504 uint16_t
1505 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1507 struct lpfc_iocbq **new_arr;
1508 struct lpfc_iocbq **old_arr;
1509 size_t new_len;
1510 struct lpfc_sli *psli = &phba->sli;
1511 uint16_t iotag;
1513 spin_lock_irq(&phba->hbalock);
1514 iotag = psli->last_iotag;
1515 if(++iotag < psli->iocbq_lookup_len) {
1516 psli->last_iotag = iotag;
1517 psli->iocbq_lookup[iotag] = iocbq;
1518 spin_unlock_irq(&phba->hbalock);
1519 iocbq->iotag = iotag;
1520 return iotag;
1521 } else if (psli->iocbq_lookup_len < (0xffff
1522 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1523 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
1524 spin_unlock_irq(&phba->hbalock);
1525 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
1526 GFP_KERNEL);
1527 if (new_arr) {
1528 spin_lock_irq(&phba->hbalock);
1529 old_arr = psli->iocbq_lookup;
1530 if (new_len <= psli->iocbq_lookup_len) {
1531 /* highly unprobable case */
1532 kfree(new_arr);
1533 iotag = psli->last_iotag;
1534 if(++iotag < psli->iocbq_lookup_len) {
1535 psli->last_iotag = iotag;
1536 psli->iocbq_lookup[iotag] = iocbq;
1537 spin_unlock_irq(&phba->hbalock);
1538 iocbq->iotag = iotag;
1539 return iotag;
1541 spin_unlock_irq(&phba->hbalock);
1542 return 0;
1544 if (psli->iocbq_lookup)
1545 memcpy(new_arr, old_arr,
1546 ((psli->last_iotag + 1) *
1547 sizeof (struct lpfc_iocbq *)));
1548 psli->iocbq_lookup = new_arr;
1549 psli->iocbq_lookup_len = new_len;
1550 psli->last_iotag = iotag;
1551 psli->iocbq_lookup[iotag] = iocbq;
1552 spin_unlock_irq(&phba->hbalock);
1553 iocbq->iotag = iotag;
1554 kfree(old_arr);
1555 return iotag;
1557 } else
1558 spin_unlock_irq(&phba->hbalock);
1560 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1561 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1562 psli->last_iotag);
1564 return 0;
1568 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1569 * @phba: Pointer to HBA context object.
1570 * @pring: Pointer to driver SLI ring object.
1571 * @iocb: Pointer to iocb slot in the ring.
1572 * @nextiocb: Pointer to driver iocb object which need to be
1573 * posted to firmware.
1575 * This function is called with hbalock held to post a new iocb to
1576 * the firmware. This function copies the new iocb to ring iocb slot and
1577 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1578 * a completion call back for this iocb else the function will free the
1579 * iocb object.
1581 static void
1582 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1583 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1585 lockdep_assert_held(&phba->hbalock);
1587 * Set up an iotag
1589 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
1592 if (pring->ringno == LPFC_ELS_RING) {
1593 lpfc_debugfs_slow_ring_trc(phba,
1594 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1595 *(((uint32_t *) &nextiocb->iocb) + 4),
1596 *(((uint32_t *) &nextiocb->iocb) + 6),
1597 *(((uint32_t *) &nextiocb->iocb) + 7));
1601 * Issue iocb command to adapter
1603 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
1604 wmb();
1605 pring->stats.iocb_cmd++;
1608 * If there is no completion routine to call, we can release the
1609 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1610 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1612 if (nextiocb->iocb_cmpl)
1613 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
1614 else
1615 __lpfc_sli_release_iocbq(phba, nextiocb);
1618 * Let the HBA know what IOCB slot will be the next one the
1619 * driver will put a command into.
1621 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1622 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
1626 * lpfc_sli_update_full_ring - Update the chip attention register
1627 * @phba: Pointer to HBA context object.
1628 * @pring: Pointer to driver SLI ring object.
1630 * The caller is not required to hold any lock for calling this function.
1631 * This function updates the chip attention bits for the ring to inform firmware
1632 * that there are pending work to be done for this ring and requests an
1633 * interrupt when there is space available in the ring. This function is
1634 * called when the driver is unable to post more iocbs to the ring due
1635 * to unavailability of space in the ring.
1637 static void
1638 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1640 int ringno = pring->ringno;
1642 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1644 wmb();
1647 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1648 * The HBA will tell us when an IOCB entry is available.
1650 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1651 readl(phba->CAregaddr); /* flush */
1653 pring->stats.iocb_cmd_full++;
1657 * lpfc_sli_update_ring - Update chip attention register
1658 * @phba: Pointer to HBA context object.
1659 * @pring: Pointer to driver SLI ring object.
1661 * This function updates the chip attention register bit for the
1662 * given ring to inform HBA that there is more work to be done
1663 * in this ring. The caller is not required to hold any lock.
1665 static void
1666 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1668 int ringno = pring->ringno;
1671 * Tell the HBA that there is work to do in this ring.
1673 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1674 wmb();
1675 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1676 readl(phba->CAregaddr); /* flush */
1681 * lpfc_sli_resume_iocb - Process iocbs in the txq
1682 * @phba: Pointer to HBA context object.
1683 * @pring: Pointer to driver SLI ring object.
1685 * This function is called with hbalock held to post pending iocbs
1686 * in the txq to the firmware. This function is called when driver
1687 * detects space available in the ring.
1689 static void
1690 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1692 IOCB_t *iocb;
1693 struct lpfc_iocbq *nextiocb;
1695 lockdep_assert_held(&phba->hbalock);
1698 * Check to see if:
1699 * (a) there is anything on the txq to send
1700 * (b) link is up
1701 * (c) link attention events can be processed (fcp ring only)
1702 * (d) IOCB processing is not blocked by the outstanding mbox command.
1705 if (lpfc_is_link_up(phba) &&
1706 (!list_empty(&pring->txq)) &&
1707 (pring->ringno != LPFC_FCP_RING ||
1708 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
1710 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1711 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1712 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1714 if (iocb)
1715 lpfc_sli_update_ring(phba, pring);
1716 else
1717 lpfc_sli_update_full_ring(phba, pring);
1720 return;
1724 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1725 * @phba: Pointer to HBA context object.
1726 * @hbqno: HBQ number.
1728 * This function is called with hbalock held to get the next
1729 * available slot for the given HBQ. If there is free slot
1730 * available for the HBQ it will return pointer to the next available
1731 * HBQ entry else it will return NULL.
1733 static struct lpfc_hbq_entry *
1734 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1736 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1738 lockdep_assert_held(&phba->hbalock);
1740 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1741 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1742 hbqp->next_hbqPutIdx = 0;
1744 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
1745 uint32_t raw_index = phba->hbq_get[hbqno];
1746 uint32_t getidx = le32_to_cpu(raw_index);
1748 hbqp->local_hbqGetIdx = getidx;
1750 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1751 lpfc_printf_log(phba, KERN_ERR,
1752 LOG_SLI | LOG_VPORT,
1753 "1802 HBQ %d: local_hbqGetIdx "
1754 "%u is > than hbqp->entry_count %u\n",
1755 hbqno, hbqp->local_hbqGetIdx,
1756 hbqp->entry_count);
1758 phba->link_state = LPFC_HBA_ERROR;
1759 return NULL;
1762 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1763 return NULL;
1766 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1767 hbqp->hbqPutIdx;
1771 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1772 * @phba: Pointer to HBA context object.
1774 * This function is called with no lock held to free all the
1775 * hbq buffers while uninitializing the SLI interface. It also
1776 * frees the HBQ buffers returned by the firmware but not yet
1777 * processed by the upper layers.
1779 void
1780 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1782 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1783 struct hbq_dmabuf *hbq_buf;
1784 unsigned long flags;
1785 int i, hbq_count;
1787 hbq_count = lpfc_sli_hbq_count();
1788 /* Return all memory used by all HBQs */
1789 spin_lock_irqsave(&phba->hbalock, flags);
1790 for (i = 0; i < hbq_count; ++i) {
1791 list_for_each_entry_safe(dmabuf, next_dmabuf,
1792 &phba->hbqs[i].hbq_buffer_list, list) {
1793 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1794 list_del(&hbq_buf->dbuf.list);
1795 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1797 phba->hbqs[i].buffer_count = 0;
1800 /* Mark the HBQs not in use */
1801 phba->hbq_in_use = 0;
1802 spin_unlock_irqrestore(&phba->hbalock, flags);
1806 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1807 * @phba: Pointer to HBA context object.
1808 * @hbqno: HBQ number.
1809 * @hbq_buf: Pointer to HBQ buffer.
1811 * This function is called with the hbalock held to post a
1812 * hbq buffer to the firmware. If the function finds an empty
1813 * slot in the HBQ, it will post the buffer. The function will return
1814 * pointer to the hbq entry if it successfully post the buffer
1815 * else it will return NULL.
1817 static int
1818 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
1819 struct hbq_dmabuf *hbq_buf)
1821 lockdep_assert_held(&phba->hbalock);
1822 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1826 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1827 * @phba: Pointer to HBA context object.
1828 * @hbqno: HBQ number.
1829 * @hbq_buf: Pointer to HBQ buffer.
1831 * This function is called with the hbalock held to post a hbq buffer to the
1832 * firmware. If the function finds an empty slot in the HBQ, it will post the
1833 * buffer and place it on the hbq_buffer_list. The function will return zero if
1834 * it successfully post the buffer else it will return an error.
1836 static int
1837 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1838 struct hbq_dmabuf *hbq_buf)
1840 struct lpfc_hbq_entry *hbqe;
1841 dma_addr_t physaddr = hbq_buf->dbuf.phys;
1843 lockdep_assert_held(&phba->hbalock);
1844 /* Get next HBQ entry slot to use */
1845 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1846 if (hbqe) {
1847 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1849 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1850 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
1851 hbqe->bde.tus.f.bdeSize = hbq_buf->total_size;
1852 hbqe->bde.tus.f.bdeFlags = 0;
1853 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1854 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1855 /* Sync SLIM */
1856 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1857 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
1858 /* flush */
1859 readl(phba->hbq_put + hbqno);
1860 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
1861 return 0;
1862 } else
1863 return -ENOMEM;
1867 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1868 * @phba: Pointer to HBA context object.
1869 * @hbqno: HBQ number.
1870 * @hbq_buf: Pointer to HBQ buffer.
1872 * This function is called with the hbalock held to post an RQE to the SLI4
1873 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1874 * the hbq_buffer_list and return zero, otherwise it will return an error.
1876 static int
1877 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1878 struct hbq_dmabuf *hbq_buf)
1880 int rc;
1881 struct lpfc_rqe hrqe;
1882 struct lpfc_rqe drqe;
1883 struct lpfc_queue *hrq;
1884 struct lpfc_queue *drq;
1886 if (hbqno != LPFC_ELS_HBQ)
1887 return 1;
1888 hrq = phba->sli4_hba.hdr_rq;
1889 drq = phba->sli4_hba.dat_rq;
1891 lockdep_assert_held(&phba->hbalock);
1892 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1893 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1894 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1895 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1896 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
1897 if (rc < 0)
1898 return rc;
1899 hbq_buf->tag = (rc | (hbqno << 16));
1900 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1901 return 0;
1904 /* HBQ for ELS and CT traffic. */
1905 static struct lpfc_hbq_init lpfc_els_hbq = {
1906 .rn = 1,
1907 .entry_count = 256,
1908 .mask_count = 0,
1909 .profile = 0,
1910 .ring_mask = (1 << LPFC_ELS_RING),
1911 .buffer_count = 0,
1912 .init_count = 40,
1913 .add_count = 40,
1916 /* Array of HBQs */
1917 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
1918 &lpfc_els_hbq,
1922 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1923 * @phba: Pointer to HBA context object.
1924 * @hbqno: HBQ number.
1925 * @count: Number of HBQ buffers to be posted.
1927 * This function is called with no lock held to post more hbq buffers to the
1928 * given HBQ. The function returns the number of HBQ buffers successfully
1929 * posted.
1931 static int
1932 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1934 uint32_t i, posted = 0;
1935 unsigned long flags;
1936 struct hbq_dmabuf *hbq_buffer;
1937 LIST_HEAD(hbq_buf_list);
1938 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
1939 return 0;
1941 if ((phba->hbqs[hbqno].buffer_count + count) >
1942 lpfc_hbq_defs[hbqno]->entry_count)
1943 count = lpfc_hbq_defs[hbqno]->entry_count -
1944 phba->hbqs[hbqno].buffer_count;
1945 if (!count)
1946 return 0;
1947 /* Allocate HBQ entries */
1948 for (i = 0; i < count; i++) {
1949 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1950 if (!hbq_buffer)
1951 break;
1952 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1954 /* Check whether HBQ is still in use */
1955 spin_lock_irqsave(&phba->hbalock, flags);
1956 if (!phba->hbq_in_use)
1957 goto err;
1958 while (!list_empty(&hbq_buf_list)) {
1959 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1960 dbuf.list);
1961 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1962 (hbqno << 16));
1963 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
1964 phba->hbqs[hbqno].buffer_count++;
1965 posted++;
1966 } else
1967 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1969 spin_unlock_irqrestore(&phba->hbalock, flags);
1970 return posted;
1971 err:
1972 spin_unlock_irqrestore(&phba->hbalock, flags);
1973 while (!list_empty(&hbq_buf_list)) {
1974 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1975 dbuf.list);
1976 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1978 return 0;
1982 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1983 * @phba: Pointer to HBA context object.
1984 * @qno: HBQ number.
1986 * This function posts more buffers to the HBQ. This function
1987 * is called with no lock held. The function returns the number of HBQ entries
1988 * successfully allocated.
1991 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
1993 if (phba->sli_rev == LPFC_SLI_REV4)
1994 return 0;
1995 else
1996 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1997 lpfc_hbq_defs[qno]->add_count);
2001 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
2002 * @phba: Pointer to HBA context object.
2003 * @qno: HBQ queue number.
2005 * This function is called from SLI initialization code path with
2006 * no lock held to post initial HBQ buffers to firmware. The
2007 * function returns the number of HBQ entries successfully allocated.
2009 static int
2010 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
2012 if (phba->sli_rev == LPFC_SLI_REV4)
2013 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2014 lpfc_hbq_defs[qno]->entry_count);
2015 else
2016 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
2017 lpfc_hbq_defs[qno]->init_count);
2021 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
2022 * @phba: Pointer to HBA context object.
2023 * @hbqno: HBQ number.
2025 * This function removes the first hbq buffer on an hbq list and returns a
2026 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2028 static struct hbq_dmabuf *
2029 lpfc_sli_hbqbuf_get(struct list_head *rb_list)
2031 struct lpfc_dmabuf *d_buf;
2033 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
2034 if (!d_buf)
2035 return NULL;
2036 return container_of(d_buf, struct hbq_dmabuf, dbuf);
2040 * lpfc_sli_rqbuf_get - Remove the first dma buffer off of an RQ list
2041 * @phba: Pointer to HBA context object.
2042 * @hbqno: HBQ number.
2044 * This function removes the first RQ buffer on an RQ buffer list and returns a
2045 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
2047 static struct rqb_dmabuf *
2048 lpfc_sli_rqbuf_get(struct lpfc_hba *phba, struct lpfc_queue *hrq)
2050 struct lpfc_dmabuf *h_buf;
2051 struct lpfc_rqb *rqbp;
2053 rqbp = hrq->rqbp;
2054 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
2055 struct lpfc_dmabuf, list);
2056 if (!h_buf)
2057 return NULL;
2058 rqbp->buffer_count--;
2059 return container_of(h_buf, struct rqb_dmabuf, hbuf);
2063 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
2064 * @phba: Pointer to HBA context object.
2065 * @tag: Tag of the hbq buffer.
2067 * This function searches for the hbq buffer associated with the given tag in
2068 * the hbq buffer list. If it finds the hbq buffer, it returns the hbq_buffer
2069 * otherwise it returns NULL.
2071 static struct hbq_dmabuf *
2072 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
2074 struct lpfc_dmabuf *d_buf;
2075 struct hbq_dmabuf *hbq_buf;
2076 uint32_t hbqno;
2078 hbqno = tag >> 16;
2079 if (hbqno >= LPFC_MAX_HBQS)
2080 return NULL;
2082 spin_lock_irq(&phba->hbalock);
2083 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
2084 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
2085 if (hbq_buf->tag == tag) {
2086 spin_unlock_irq(&phba->hbalock);
2087 return hbq_buf;
2090 spin_unlock_irq(&phba->hbalock);
2091 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
2092 "1803 Bad hbq tag. Data: x%x x%x\n",
2093 tag, phba->hbqs[tag >> 16].buffer_count);
2094 return NULL;
2098 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2099 * @phba: Pointer to HBA context object.
2100 * @hbq_buffer: Pointer to HBQ buffer.
2102 * This function is called with hbalock. This function gives back
2103 * the hbq buffer to firmware. If the HBQ does not have space to
2104 * post the buffer, it will free the buffer.
2106 void
2107 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
2109 uint32_t hbqno;
2111 if (hbq_buffer) {
2112 hbqno = hbq_buffer->tag >> 16;
2113 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
2114 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
2119 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2120 * @mbxCommand: mailbox command code.
2122 * This function is called by the mailbox event handler function to verify
2123 * that the completed mailbox command is a legitimate mailbox command. If the
2124 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2125 * and the mailbox event handler will take the HBA offline.
2127 static int
2128 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2130 uint8_t ret;
2132 switch (mbxCommand) {
2133 case MBX_LOAD_SM:
2134 case MBX_READ_NV:
2135 case MBX_WRITE_NV:
2136 case MBX_WRITE_VPARMS:
2137 case MBX_RUN_BIU_DIAG:
2138 case MBX_INIT_LINK:
2139 case MBX_DOWN_LINK:
2140 case MBX_CONFIG_LINK:
2141 case MBX_CONFIG_RING:
2142 case MBX_RESET_RING:
2143 case MBX_READ_CONFIG:
2144 case MBX_READ_RCONFIG:
2145 case MBX_READ_SPARM:
2146 case MBX_READ_STATUS:
2147 case MBX_READ_RPI:
2148 case MBX_READ_XRI:
2149 case MBX_READ_REV:
2150 case MBX_READ_LNK_STAT:
2151 case MBX_REG_LOGIN:
2152 case MBX_UNREG_LOGIN:
2153 case MBX_CLEAR_LA:
2154 case MBX_DUMP_MEMORY:
2155 case MBX_DUMP_CONTEXT:
2156 case MBX_RUN_DIAGS:
2157 case MBX_RESTART:
2158 case MBX_UPDATE_CFG:
2159 case MBX_DOWN_LOAD:
2160 case MBX_DEL_LD_ENTRY:
2161 case MBX_RUN_PROGRAM:
2162 case MBX_SET_MASK:
2163 case MBX_SET_VARIABLE:
2164 case MBX_UNREG_D_ID:
2165 case MBX_KILL_BOARD:
2166 case MBX_CONFIG_FARP:
2167 case MBX_BEACON:
2168 case MBX_LOAD_AREA:
2169 case MBX_RUN_BIU_DIAG64:
2170 case MBX_CONFIG_PORT:
2171 case MBX_READ_SPARM64:
2172 case MBX_READ_RPI64:
2173 case MBX_REG_LOGIN64:
2174 case MBX_READ_TOPOLOGY:
2175 case MBX_WRITE_WWN:
2176 case MBX_SET_DEBUG:
2177 case MBX_LOAD_EXP_ROM:
2178 case MBX_ASYNCEVT_ENABLE:
2179 case MBX_REG_VPI:
2180 case MBX_UNREG_VPI:
2181 case MBX_HEARTBEAT:
2182 case MBX_PORT_CAPABILITIES:
2183 case MBX_PORT_IOV_CONTROL:
2184 case MBX_SLI4_CONFIG:
2185 case MBX_SLI4_REQ_FTRS:
2186 case MBX_REG_FCFI:
2187 case MBX_UNREG_FCFI:
2188 case MBX_REG_VFI:
2189 case MBX_UNREG_VFI:
2190 case MBX_INIT_VPI:
2191 case MBX_INIT_VFI:
2192 case MBX_RESUME_RPI:
2193 case MBX_READ_EVENT_LOG_STATUS:
2194 case MBX_READ_EVENT_LOG:
2195 case MBX_SECURITY_MGMT:
2196 case MBX_AUTH_PORT:
2197 case MBX_ACCESS_VDATA:
2198 ret = mbxCommand;
2199 break;
2200 default:
2201 ret = MBX_SHUTDOWN;
2202 break;
2204 return ret;
2208 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2209 * @phba: Pointer to HBA context object.
2210 * @pmboxq: Pointer to mailbox command.
2212 * This is completion handler function for mailbox commands issued from
2213 * lpfc_sli_issue_mbox_wait function. This function is called by the
2214 * mailbox event handler function with no lock held. This function
2215 * will wake up thread waiting on the wait queue pointed by context1
2216 * of the mailbox.
2218 void
2219 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
2221 wait_queue_head_t *pdone_q;
2222 unsigned long drvr_flag;
2225 * If pdone_q is empty, the driver thread gave up waiting and
2226 * continued running.
2228 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
2229 spin_lock_irqsave(&phba->hbalock, drvr_flag);
2230 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2231 if (pdone_q)
2232 wake_up_interruptible(pdone_q);
2233 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2234 return;
2239 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2240 * @phba: Pointer to HBA context object.
2241 * @pmb: Pointer to mailbox object.
2243 * This function is the default mailbox completion handler. It
2244 * frees the memory resources associated with the completed mailbox
2245 * command. If the completed command is a REG_LOGIN mailbox command,
2246 * this function will issue a UREG_LOGIN to re-claim the RPI.
2248 void
2249 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2251 struct lpfc_vport *vport = pmb->vport;
2252 struct lpfc_dmabuf *mp;
2253 struct lpfc_nodelist *ndlp;
2254 struct Scsi_Host *shost;
2255 uint16_t rpi, vpi;
2256 int rc;
2258 mp = (struct lpfc_dmabuf *) (pmb->context1);
2260 if (mp) {
2261 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2262 kfree(mp);
2266 * If a REG_LOGIN succeeded after node is destroyed or node
2267 * is in re-discovery driver need to cleanup the RPI.
2269 if (!(phba->pport->load_flag & FC_UNLOADING) &&
2270 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2271 !pmb->u.mb.mbxStatus) {
2272 rpi = pmb->u.mb.un.varWords[0];
2273 vpi = pmb->u.mb.un.varRegLogin.vpi;
2274 lpfc_unreg_login(phba, vpi, rpi, pmb);
2275 pmb->vport = vport;
2276 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
2277 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2278 if (rc != MBX_NOT_FINISHED)
2279 return;
2282 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2283 !(phba->pport->load_flag & FC_UNLOADING) &&
2284 !pmb->u.mb.mbxStatus) {
2285 shost = lpfc_shost_from_vport(vport);
2286 spin_lock_irq(shost->host_lock);
2287 vport->vpi_state |= LPFC_VPI_REGISTERED;
2288 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2289 spin_unlock_irq(shost->host_lock);
2292 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2293 ndlp = (struct lpfc_nodelist *)pmb->context2;
2294 lpfc_nlp_put(ndlp);
2295 pmb->context2 = NULL;
2298 /* Check security permission status on INIT_LINK mailbox command */
2299 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2300 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2301 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2302 "2860 SLI authentication is required "
2303 "for INIT_LINK but has not done yet\n");
2305 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2306 lpfc_sli4_mbox_cmd_free(phba, pmb);
2307 else
2308 mempool_free(pmb, phba->mbox_mem_pool);
2311 * lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
2312 * @phba: Pointer to HBA context object.
2313 * @pmb: Pointer to mailbox object.
2315 * This function is the unreg rpi mailbox completion handler. It
2316 * frees the memory resources associated with the completed mailbox
2317 * command. An additional refrenece is put on the ndlp to prevent
2318 * lpfc_nlp_release from freeing the rpi bit in the bitmask before
2319 * the unreg mailbox command completes, this routine puts the
2320 * reference back.
2323 void
2324 lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2326 struct lpfc_vport *vport = pmb->vport;
2327 struct lpfc_nodelist *ndlp;
2329 ndlp = pmb->context1;
2330 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2331 if (phba->sli_rev == LPFC_SLI_REV4 &&
2332 (bf_get(lpfc_sli_intf_if_type,
2333 &phba->sli4_hba.sli_intf) ==
2334 LPFC_SLI_INTF_IF_TYPE_2)) {
2335 if (ndlp) {
2336 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
2337 "0010 UNREG_LOGIN vpi:%x "
2338 "rpi:%x DID:%x map:%x %p\n",
2339 vport->vpi, ndlp->nlp_rpi,
2340 ndlp->nlp_DID,
2341 ndlp->nlp_usg_map, ndlp);
2342 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
2343 lpfc_nlp_put(ndlp);
2348 mempool_free(pmb, phba->mbox_mem_pool);
2352 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2353 * @phba: Pointer to HBA context object.
2355 * This function is called with no lock held. This function processes all
2356 * the completed mailbox commands and gives it to upper layers. The interrupt
2357 * service routine processes mailbox completion interrupt and adds completed
2358 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2359 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2360 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2361 * function returns the mailbox commands to the upper layer by calling the
2362 * completion handler function of each mailbox.
2365 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
2367 MAILBOX_t *pmbox;
2368 LPFC_MBOXQ_t *pmb;
2369 int rc;
2370 LIST_HEAD(cmplq);
2372 phba->sli.slistat.mbox_event++;
2374 /* Get all completed mailboxe buffers into the cmplq */
2375 spin_lock_irq(&phba->hbalock);
2376 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2377 spin_unlock_irq(&phba->hbalock);
2379 /* Get a Mailbox buffer to setup mailbox commands for callback */
2380 do {
2381 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2382 if (pmb == NULL)
2383 break;
2385 pmbox = &pmb->u.mb;
2387 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2388 if (pmb->vport) {
2389 lpfc_debugfs_disc_trc(pmb->vport,
2390 LPFC_DISC_TRC_MBOX_VPORT,
2391 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2392 (uint32_t)pmbox->mbxCommand,
2393 pmbox->un.varWords[0],
2394 pmbox->un.varWords[1]);
2396 else {
2397 lpfc_debugfs_disc_trc(phba->pport,
2398 LPFC_DISC_TRC_MBOX,
2399 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2400 (uint32_t)pmbox->mbxCommand,
2401 pmbox->un.varWords[0],
2402 pmbox->un.varWords[1]);
2407 * It is a fatal error if unknown mbox command completion.
2409 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2410 MBX_SHUTDOWN) {
2411 /* Unknown mailbox command compl */
2412 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2413 "(%d):0323 Unknown Mailbox command "
2414 "x%x (x%x/x%x) Cmpl\n",
2415 pmb->vport ? pmb->vport->vpi : 0,
2416 pmbox->mbxCommand,
2417 lpfc_sli_config_mbox_subsys_get(phba,
2418 pmb),
2419 lpfc_sli_config_mbox_opcode_get(phba,
2420 pmb));
2421 phba->link_state = LPFC_HBA_ERROR;
2422 phba->work_hs = HS_FFER3;
2423 lpfc_handle_eratt(phba);
2424 continue;
2427 if (pmbox->mbxStatus) {
2428 phba->sli.slistat.mbox_stat_err++;
2429 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2430 /* Mbox cmd cmpl error - RETRYing */
2431 lpfc_printf_log(phba, KERN_INFO,
2432 LOG_MBOX | LOG_SLI,
2433 "(%d):0305 Mbox cmd cmpl "
2434 "error - RETRYing Data: x%x "
2435 "(x%x/x%x) x%x x%x x%x\n",
2436 pmb->vport ? pmb->vport->vpi : 0,
2437 pmbox->mbxCommand,
2438 lpfc_sli_config_mbox_subsys_get(phba,
2439 pmb),
2440 lpfc_sli_config_mbox_opcode_get(phba,
2441 pmb),
2442 pmbox->mbxStatus,
2443 pmbox->un.varWords[0],
2444 pmb->vport->port_state);
2445 pmbox->mbxStatus = 0;
2446 pmbox->mbxOwner = OWN_HOST;
2447 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2448 if (rc != MBX_NOT_FINISHED)
2449 continue;
2453 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2454 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2455 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2456 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2457 "x%x x%x x%x\n",
2458 pmb->vport ? pmb->vport->vpi : 0,
2459 pmbox->mbxCommand,
2460 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2461 lpfc_sli_config_mbox_opcode_get(phba, pmb),
2462 pmb->mbox_cmpl,
2463 *((uint32_t *) pmbox),
2464 pmbox->un.varWords[0],
2465 pmbox->un.varWords[1],
2466 pmbox->un.varWords[2],
2467 pmbox->un.varWords[3],
2468 pmbox->un.varWords[4],
2469 pmbox->un.varWords[5],
2470 pmbox->un.varWords[6],
2471 pmbox->un.varWords[7],
2472 pmbox->un.varWords[8],
2473 pmbox->un.varWords[9],
2474 pmbox->un.varWords[10]);
2476 if (pmb->mbox_cmpl)
2477 pmb->mbox_cmpl(phba,pmb);
2478 } while (1);
2479 return 0;
2483 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2484 * @phba: Pointer to HBA context object.
2485 * @pring: Pointer to driver SLI ring object.
2486 * @tag: buffer tag.
2488 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2489 * is set in the tag the buffer is posted for a particular exchange,
2490 * the function will return the buffer without replacing the buffer.
2491 * If the buffer is for unsolicited ELS or CT traffic, this function
2492 * returns the buffer and also posts another buffer to the firmware.
2494 static struct lpfc_dmabuf *
2495 lpfc_sli_get_buff(struct lpfc_hba *phba,
2496 struct lpfc_sli_ring *pring,
2497 uint32_t tag)
2499 struct hbq_dmabuf *hbq_entry;
2501 if (tag & QUE_BUFTAG_BIT)
2502 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
2503 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2504 if (!hbq_entry)
2505 return NULL;
2506 return &hbq_entry->dbuf;
2510 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2511 * @phba: Pointer to HBA context object.
2512 * @pring: Pointer to driver SLI ring object.
2513 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2514 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2515 * @fch_type: the type for the first frame of the sequence.
2517 * This function is called with no lock held. This function uses the r_ctl and
2518 * type of the received sequence to find the correct callback function to call
2519 * to process the sequence.
2521 static int
2522 lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2523 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2524 uint32_t fch_type)
2526 int i;
2528 switch (fch_type) {
2529 case FC_TYPE_NVME:
2530 lpfc_nvmet_unsol_ls_event(phba, pring, saveq);
2531 return 1;
2532 default:
2533 break;
2536 /* unSolicited Responses */
2537 if (pring->prt[0].profile) {
2538 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2539 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2540 saveq);
2541 return 1;
2543 /* We must search, based on rctl / type
2544 for the right routine */
2545 for (i = 0; i < pring->num_mask; i++) {
2546 if ((pring->prt[i].rctl == fch_r_ctl) &&
2547 (pring->prt[i].type == fch_type)) {
2548 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2549 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2550 (phba, pring, saveq);
2551 return 1;
2554 return 0;
2558 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2559 * @phba: Pointer to HBA context object.
2560 * @pring: Pointer to driver SLI ring object.
2561 * @saveq: Pointer to the unsolicited iocb.
2563 * This function is called with no lock held by the ring event handler
2564 * when there is an unsolicited iocb posted to the response ring by the
2565 * firmware. This function gets the buffer associated with the iocbs
2566 * and calls the event handler for the ring. This function handles both
2567 * qring buffers and hbq buffers.
2568 * When the function returns 1 the caller can free the iocb object otherwise
2569 * upper layer functions will free the iocb objects.
2571 static int
2572 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2573 struct lpfc_iocbq *saveq)
2575 IOCB_t * irsp;
2576 WORD5 * w5p;
2577 uint32_t Rctl, Type;
2578 struct lpfc_iocbq *iocbq;
2579 struct lpfc_dmabuf *dmzbuf;
2581 irsp = &(saveq->iocb);
2583 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2584 if (pring->lpfc_sli_rcv_async_status)
2585 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2586 else
2587 lpfc_printf_log(phba,
2588 KERN_WARNING,
2589 LOG_SLI,
2590 "0316 Ring %d handler: unexpected "
2591 "ASYNC_STATUS iocb received evt_code "
2592 "0x%x\n",
2593 pring->ringno,
2594 irsp->un.asyncstat.evt_code);
2595 return 1;
2598 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2599 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2600 if (irsp->ulpBdeCount > 0) {
2601 dmzbuf = lpfc_sli_get_buff(phba, pring,
2602 irsp->un.ulpWord[3]);
2603 lpfc_in_buf_free(phba, dmzbuf);
2606 if (irsp->ulpBdeCount > 1) {
2607 dmzbuf = lpfc_sli_get_buff(phba, pring,
2608 irsp->unsli3.sli3Words[3]);
2609 lpfc_in_buf_free(phba, dmzbuf);
2612 if (irsp->ulpBdeCount > 2) {
2613 dmzbuf = lpfc_sli_get_buff(phba, pring,
2614 irsp->unsli3.sli3Words[7]);
2615 lpfc_in_buf_free(phba, dmzbuf);
2618 return 1;
2621 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2622 if (irsp->ulpBdeCount != 0) {
2623 saveq->context2 = lpfc_sli_get_buff(phba, pring,
2624 irsp->un.ulpWord[3]);
2625 if (!saveq->context2)
2626 lpfc_printf_log(phba,
2627 KERN_ERR,
2628 LOG_SLI,
2629 "0341 Ring %d Cannot find buffer for "
2630 "an unsolicited iocb. tag 0x%x\n",
2631 pring->ringno,
2632 irsp->un.ulpWord[3]);
2634 if (irsp->ulpBdeCount == 2) {
2635 saveq->context3 = lpfc_sli_get_buff(phba, pring,
2636 irsp->unsli3.sli3Words[7]);
2637 if (!saveq->context3)
2638 lpfc_printf_log(phba,
2639 KERN_ERR,
2640 LOG_SLI,
2641 "0342 Ring %d Cannot find buffer for an"
2642 " unsolicited iocb. tag 0x%x\n",
2643 pring->ringno,
2644 irsp->unsli3.sli3Words[7]);
2646 list_for_each_entry(iocbq, &saveq->list, list) {
2647 irsp = &(iocbq->iocb);
2648 if (irsp->ulpBdeCount != 0) {
2649 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2650 irsp->un.ulpWord[3]);
2651 if (!iocbq->context2)
2652 lpfc_printf_log(phba,
2653 KERN_ERR,
2654 LOG_SLI,
2655 "0343 Ring %d Cannot find "
2656 "buffer for an unsolicited iocb"
2657 ". tag 0x%x\n", pring->ringno,
2658 irsp->un.ulpWord[3]);
2660 if (irsp->ulpBdeCount == 2) {
2661 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2662 irsp->unsli3.sli3Words[7]);
2663 if (!iocbq->context3)
2664 lpfc_printf_log(phba,
2665 KERN_ERR,
2666 LOG_SLI,
2667 "0344 Ring %d Cannot find "
2668 "buffer for an unsolicited "
2669 "iocb. tag 0x%x\n",
2670 pring->ringno,
2671 irsp->unsli3.sli3Words[7]);
2675 if (irsp->ulpBdeCount != 0 &&
2676 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2677 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2678 int found = 0;
2680 /* search continue save q for same XRI */
2681 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2682 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2683 saveq->iocb.unsli3.rcvsli3.ox_id) {
2684 list_add_tail(&saveq->list, &iocbq->list);
2685 found = 1;
2686 break;
2689 if (!found)
2690 list_add_tail(&saveq->clist,
2691 &pring->iocb_continue_saveq);
2692 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2693 list_del_init(&iocbq->clist);
2694 saveq = iocbq;
2695 irsp = &(saveq->iocb);
2696 } else
2697 return 0;
2699 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2700 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2701 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2702 Rctl = FC_RCTL_ELS_REQ;
2703 Type = FC_TYPE_ELS;
2704 } else {
2705 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2706 Rctl = w5p->hcsw.Rctl;
2707 Type = w5p->hcsw.Type;
2709 /* Firmware Workaround */
2710 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2711 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2712 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2713 Rctl = FC_RCTL_ELS_REQ;
2714 Type = FC_TYPE_ELS;
2715 w5p->hcsw.Rctl = Rctl;
2716 w5p->hcsw.Type = Type;
2720 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
2721 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2722 "0313 Ring %d handler: unexpected Rctl x%x "
2723 "Type x%x received\n",
2724 pring->ringno, Rctl, Type);
2726 return 1;
2730 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2731 * @phba: Pointer to HBA context object.
2732 * @pring: Pointer to driver SLI ring object.
2733 * @prspiocb: Pointer to response iocb object.
2735 * This function looks up the iocb_lookup table to get the command iocb
2736 * corresponding to the given response iocb using the iotag of the
2737 * response iocb. This function is called with the hbalock held
2738 * for sli3 devices or the ring_lock for sli4 devices.
2739 * This function returns the command iocb object if it finds the command
2740 * iocb else returns NULL.
2742 static struct lpfc_iocbq *
2743 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2744 struct lpfc_sli_ring *pring,
2745 struct lpfc_iocbq *prspiocb)
2747 struct lpfc_iocbq *cmd_iocb = NULL;
2748 uint16_t iotag;
2749 lockdep_assert_held(&phba->hbalock);
2751 iotag = prspiocb->iocb.ulpIoTag;
2753 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2754 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2755 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2756 /* remove from txcmpl queue list */
2757 list_del_init(&cmd_iocb->list);
2758 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2759 return cmd_iocb;
2763 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2764 "0317 iotag x%x is out of "
2765 "range: max iotag x%x wd0 x%x\n",
2766 iotag, phba->sli.last_iotag,
2767 *(((uint32_t *) &prspiocb->iocb) + 7));
2768 return NULL;
2772 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2773 * @phba: Pointer to HBA context object.
2774 * @pring: Pointer to driver SLI ring object.
2775 * @iotag: IOCB tag.
2777 * This function looks up the iocb_lookup table to get the command iocb
2778 * corresponding to the given iotag. This function is called with the
2779 * hbalock held.
2780 * This function returns the command iocb object if it finds the command
2781 * iocb else returns NULL.
2783 static struct lpfc_iocbq *
2784 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2785 struct lpfc_sli_ring *pring, uint16_t iotag)
2787 struct lpfc_iocbq *cmd_iocb = NULL;
2789 lockdep_assert_held(&phba->hbalock);
2790 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2791 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2792 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2793 /* remove from txcmpl queue list */
2794 list_del_init(&cmd_iocb->list);
2795 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
2796 return cmd_iocb;
2800 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2801 "0372 iotag x%x lookup error: max iotag (x%x) "
2802 "iocb_flag x%x\n",
2803 iotag, phba->sli.last_iotag,
2804 cmd_iocb ? cmd_iocb->iocb_flag : 0xffff);
2805 return NULL;
2809 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2810 * @phba: Pointer to HBA context object.
2811 * @pring: Pointer to driver SLI ring object.
2812 * @saveq: Pointer to the response iocb to be processed.
2814 * This function is called by the ring event handler for non-fcp
2815 * rings when there is a new response iocb in the response ring.
2816 * The caller is not required to hold any locks. This function
2817 * gets the command iocb associated with the response iocb and
2818 * calls the completion handler for the command iocb. If there
2819 * is no completion handler, the function will free the resources
2820 * associated with command iocb. If the response iocb is for
2821 * an already aborted command iocb, the status of the completion
2822 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2823 * This function always returns 1.
2825 static int
2826 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2827 struct lpfc_iocbq *saveq)
2829 struct lpfc_iocbq *cmdiocbp;
2830 int rc = 1;
2831 unsigned long iflag;
2833 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2834 if (phba->sli_rev == LPFC_SLI_REV4)
2835 spin_lock_irqsave(&pring->ring_lock, iflag);
2836 else
2837 spin_lock_irqsave(&phba->hbalock, iflag);
2838 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
2839 if (phba->sli_rev == LPFC_SLI_REV4)
2840 spin_unlock_irqrestore(&pring->ring_lock, iflag);
2841 else
2842 spin_unlock_irqrestore(&phba->hbalock, iflag);
2844 if (cmdiocbp) {
2845 if (cmdiocbp->iocb_cmpl) {
2847 * If an ELS command failed send an event to mgmt
2848 * application.
2850 if (saveq->iocb.ulpStatus &&
2851 (pring->ringno == LPFC_ELS_RING) &&
2852 (cmdiocbp->iocb.ulpCommand ==
2853 CMD_ELS_REQUEST64_CR))
2854 lpfc_send_els_failure_event(phba,
2855 cmdiocbp, saveq);
2858 * Post all ELS completions to the worker thread.
2859 * All other are passed to the completion callback.
2861 if (pring->ringno == LPFC_ELS_RING) {
2862 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2863 (cmdiocbp->iocb_flag &
2864 LPFC_DRIVER_ABORTED)) {
2865 spin_lock_irqsave(&phba->hbalock,
2866 iflag);
2867 cmdiocbp->iocb_flag &=
2868 ~LPFC_DRIVER_ABORTED;
2869 spin_unlock_irqrestore(&phba->hbalock,
2870 iflag);
2871 saveq->iocb.ulpStatus =
2872 IOSTAT_LOCAL_REJECT;
2873 saveq->iocb.un.ulpWord[4] =
2874 IOERR_SLI_ABORTED;
2876 /* Firmware could still be in progress
2877 * of DMAing payload, so don't free data
2878 * buffer till after a hbeat.
2880 spin_lock_irqsave(&phba->hbalock,
2881 iflag);
2882 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
2883 spin_unlock_irqrestore(&phba->hbalock,
2884 iflag);
2886 if (phba->sli_rev == LPFC_SLI_REV4) {
2887 if (saveq->iocb_flag &
2888 LPFC_EXCHANGE_BUSY) {
2889 /* Set cmdiocb flag for the
2890 * exchange busy so sgl (xri)
2891 * will not be released until
2892 * the abort xri is received
2893 * from hba.
2895 spin_lock_irqsave(
2896 &phba->hbalock, iflag);
2897 cmdiocbp->iocb_flag |=
2898 LPFC_EXCHANGE_BUSY;
2899 spin_unlock_irqrestore(
2900 &phba->hbalock, iflag);
2902 if (cmdiocbp->iocb_flag &
2903 LPFC_DRIVER_ABORTED) {
2905 * Clear LPFC_DRIVER_ABORTED
2906 * bit in case it was driver
2907 * initiated abort.
2909 spin_lock_irqsave(
2910 &phba->hbalock, iflag);
2911 cmdiocbp->iocb_flag &=
2912 ~LPFC_DRIVER_ABORTED;
2913 spin_unlock_irqrestore(
2914 &phba->hbalock, iflag);
2915 cmdiocbp->iocb.ulpStatus =
2916 IOSTAT_LOCAL_REJECT;
2917 cmdiocbp->iocb.un.ulpWord[4] =
2918 IOERR_ABORT_REQUESTED;
2920 * For SLI4, irsiocb contains
2921 * NO_XRI in sli_xritag, it
2922 * shall not affect releasing
2923 * sgl (xri) process.
2925 saveq->iocb.ulpStatus =
2926 IOSTAT_LOCAL_REJECT;
2927 saveq->iocb.un.ulpWord[4] =
2928 IOERR_SLI_ABORTED;
2929 spin_lock_irqsave(
2930 &phba->hbalock, iflag);
2931 saveq->iocb_flag |=
2932 LPFC_DELAY_MEM_FREE;
2933 spin_unlock_irqrestore(
2934 &phba->hbalock, iflag);
2938 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
2939 } else
2940 lpfc_sli_release_iocbq(phba, cmdiocbp);
2941 } else {
2943 * Unknown initiating command based on the response iotag.
2944 * This could be the case on the ELS ring because of
2945 * lpfc_els_abort().
2947 if (pring->ringno != LPFC_ELS_RING) {
2949 * Ring <ringno> handler: unexpected completion IoTag
2950 * <IoTag>
2952 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2953 "0322 Ring %d handler: "
2954 "unexpected completion IoTag x%x "
2955 "Data: x%x x%x x%x x%x\n",
2956 pring->ringno,
2957 saveq->iocb.ulpIoTag,
2958 saveq->iocb.ulpStatus,
2959 saveq->iocb.un.ulpWord[4],
2960 saveq->iocb.ulpCommand,
2961 saveq->iocb.ulpContext);
2965 return rc;
2969 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2970 * @phba: Pointer to HBA context object.
2971 * @pring: Pointer to driver SLI ring object.
2973 * This function is called from the iocb ring event handlers when
2974 * put pointer is ahead of the get pointer for a ring. This function signal
2975 * an error attention condition to the worker thread and the worker
2976 * thread will transition the HBA to offline state.
2978 static void
2979 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
2981 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
2983 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2984 * rsp ring <portRspMax>
2986 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2987 "0312 Ring %d handler: portRspPut %d "
2988 "is bigger than rsp ring %d\n",
2989 pring->ringno, le32_to_cpu(pgp->rspPutInx),
2990 pring->sli.sli3.numRiocb);
2992 phba->link_state = LPFC_HBA_ERROR;
2995 * All error attention handlers are posted to
2996 * worker thread
2998 phba->work_ha |= HA_ERATT;
2999 phba->work_hs = HS_FFER3;
3001 lpfc_worker_wake_up(phba);
3003 return;
3007 * lpfc_poll_eratt - Error attention polling timer timeout handler
3008 * @ptr: Pointer to address of HBA context object.
3010 * This function is invoked by the Error Attention polling timer when the
3011 * timer times out. It will check the SLI Error Attention register for
3012 * possible attention events. If so, it will post an Error Attention event
3013 * and wake up worker thread to process it. Otherwise, it will set up the
3014 * Error Attention polling timer for the next poll.
3016 void lpfc_poll_eratt(struct timer_list *t)
3018 struct lpfc_hba *phba;
3019 uint32_t eratt = 0;
3020 uint64_t sli_intr, cnt;
3022 phba = from_timer(phba, t, eratt_poll);
3024 /* Here we will also keep track of interrupts per sec of the hba */
3025 sli_intr = phba->sli.slistat.sli_intr;
3027 if (phba->sli.slistat.sli_prev_intr > sli_intr)
3028 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
3029 sli_intr);
3030 else
3031 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
3033 /* 64-bit integer division not supported on 32-bit x86 - use do_div */
3034 do_div(cnt, phba->eratt_poll_interval);
3035 phba->sli.slistat.sli_ips = cnt;
3037 phba->sli.slistat.sli_prev_intr = sli_intr;
3039 /* Check chip HA register for error event */
3040 eratt = lpfc_sli_check_eratt(phba);
3042 if (eratt)
3043 /* Tell the worker thread there is work to do */
3044 lpfc_worker_wake_up(phba);
3045 else
3046 /* Restart the timer for next eratt poll */
3047 mod_timer(&phba->eratt_poll,
3048 jiffies +
3049 msecs_to_jiffies(1000 * phba->eratt_poll_interval));
3050 return;
3055 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
3056 * @phba: Pointer to HBA context object.
3057 * @pring: Pointer to driver SLI ring object.
3058 * @mask: Host attention register mask for this ring.
3060 * This function is called from the interrupt context when there is a ring
3061 * event for the fcp ring. The caller does not hold any lock.
3062 * The function processes each response iocb in the response ring until it
3063 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
3064 * LE bit set. The function will call the completion handler of the command iocb
3065 * if the response iocb indicates a completion for a command iocb or it is
3066 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
3067 * function if this is an unsolicited iocb.
3068 * This routine presumes LPFC_FCP_RING handling and doesn't bother
3069 * to check it explicitly.
3072 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
3073 struct lpfc_sli_ring *pring, uint32_t mask)
3075 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
3076 IOCB_t *irsp = NULL;
3077 IOCB_t *entry = NULL;
3078 struct lpfc_iocbq *cmdiocbq = NULL;
3079 struct lpfc_iocbq rspiocbq;
3080 uint32_t status;
3081 uint32_t portRspPut, portRspMax;
3082 int rc = 1;
3083 lpfc_iocb_type type;
3084 unsigned long iflag;
3085 uint32_t rsp_cmpl = 0;
3087 spin_lock_irqsave(&phba->hbalock, iflag);
3088 pring->stats.iocb_event++;
3091 * The next available response entry should never exceed the maximum
3092 * entries. If it does, treat it as an adapter hardware error.
3094 portRspMax = pring->sli.sli3.numRiocb;
3095 portRspPut = le32_to_cpu(pgp->rspPutInx);
3096 if (unlikely(portRspPut >= portRspMax)) {
3097 lpfc_sli_rsp_pointers_error(phba, pring);
3098 spin_unlock_irqrestore(&phba->hbalock, iflag);
3099 return 1;
3101 if (phba->fcp_ring_in_use) {
3102 spin_unlock_irqrestore(&phba->hbalock, iflag);
3103 return 1;
3104 } else
3105 phba->fcp_ring_in_use = 1;
3107 rmb();
3108 while (pring->sli.sli3.rspidx != portRspPut) {
3110 * Fetch an entry off the ring and copy it into a local data
3111 * structure. The copy involves a byte-swap since the
3112 * network byte order and pci byte orders are different.
3114 entry = lpfc_resp_iocb(phba, pring);
3115 phba->last_completion_time = jiffies;
3117 if (++pring->sli.sli3.rspidx >= portRspMax)
3118 pring->sli.sli3.rspidx = 0;
3120 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
3121 (uint32_t *) &rspiocbq.iocb,
3122 phba->iocb_rsp_size);
3123 INIT_LIST_HEAD(&(rspiocbq.list));
3124 irsp = &rspiocbq.iocb;
3126 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
3127 pring->stats.iocb_rsp++;
3128 rsp_cmpl++;
3130 if (unlikely(irsp->ulpStatus)) {
3132 * If resource errors reported from HBA, reduce
3133 * queuedepths of the SCSI device.
3135 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3136 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3137 IOERR_NO_RESOURCES)) {
3138 spin_unlock_irqrestore(&phba->hbalock, iflag);
3139 phba->lpfc_rampdown_queue_depth(phba);
3140 spin_lock_irqsave(&phba->hbalock, iflag);
3143 /* Rsp ring <ringno> error: IOCB */
3144 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3145 "0336 Rsp Ring %d error: IOCB Data: "
3146 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
3147 pring->ringno,
3148 irsp->un.ulpWord[0],
3149 irsp->un.ulpWord[1],
3150 irsp->un.ulpWord[2],
3151 irsp->un.ulpWord[3],
3152 irsp->un.ulpWord[4],
3153 irsp->un.ulpWord[5],
3154 *(uint32_t *)&irsp->un1,
3155 *((uint32_t *)&irsp->un1 + 1));
3158 switch (type) {
3159 case LPFC_ABORT_IOCB:
3160 case LPFC_SOL_IOCB:
3162 * Idle exchange closed via ABTS from port. No iocb
3163 * resources need to be recovered.
3165 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
3166 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3167 "0333 IOCB cmd 0x%x"
3168 " processed. Skipping"
3169 " completion\n",
3170 irsp->ulpCommand);
3171 break;
3174 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3175 &rspiocbq);
3176 if (unlikely(!cmdiocbq))
3177 break;
3178 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3179 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3180 if (cmdiocbq->iocb_cmpl) {
3181 spin_unlock_irqrestore(&phba->hbalock, iflag);
3182 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3183 &rspiocbq);
3184 spin_lock_irqsave(&phba->hbalock, iflag);
3186 break;
3187 case LPFC_UNSOL_IOCB:
3188 spin_unlock_irqrestore(&phba->hbalock, iflag);
3189 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
3190 spin_lock_irqsave(&phba->hbalock, iflag);
3191 break;
3192 default:
3193 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3194 char adaptermsg[LPFC_MAX_ADPTMSG];
3195 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3196 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3197 MAX_MSG_DATA);
3198 dev_warn(&((phba->pcidev)->dev),
3199 "lpfc%d: %s\n",
3200 phba->brd_no, adaptermsg);
3201 } else {
3202 /* Unknown IOCB command */
3203 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3204 "0334 Unknown IOCB command "
3205 "Data: x%x, x%x x%x x%x x%x\n",
3206 type, irsp->ulpCommand,
3207 irsp->ulpStatus,
3208 irsp->ulpIoTag,
3209 irsp->ulpContext);
3211 break;
3215 * The response IOCB has been processed. Update the ring
3216 * pointer in SLIM. If the port response put pointer has not
3217 * been updated, sync the pgp->rspPutInx and fetch the new port
3218 * response put pointer.
3220 writel(pring->sli.sli3.rspidx,
3221 &phba->host_gp[pring->ringno].rspGetInx);
3223 if (pring->sli.sli3.rspidx == portRspPut)
3224 portRspPut = le32_to_cpu(pgp->rspPutInx);
3227 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3228 pring->stats.iocb_rsp_full++;
3229 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3230 writel(status, phba->CAregaddr);
3231 readl(phba->CAregaddr);
3233 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3234 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3235 pring->stats.iocb_cmd_empty++;
3237 /* Force update of the local copy of cmdGetInx */
3238 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3239 lpfc_sli_resume_iocb(phba, pring);
3241 if ((pring->lpfc_sli_cmd_available))
3242 (pring->lpfc_sli_cmd_available) (phba, pring);
3246 phba->fcp_ring_in_use = 0;
3247 spin_unlock_irqrestore(&phba->hbalock, iflag);
3248 return rc;
3252 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3253 * @phba: Pointer to HBA context object.
3254 * @pring: Pointer to driver SLI ring object.
3255 * @rspiocbp: Pointer to driver response IOCB object.
3257 * This function is called from the worker thread when there is a slow-path
3258 * response IOCB to process. This function chains all the response iocbs until
3259 * seeing the iocb with the LE bit set. The function will call
3260 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3261 * completion of a command iocb. The function will call the
3262 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3263 * The function frees the resources or calls the completion handler if this
3264 * iocb is an abort completion. The function returns NULL when the response
3265 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3266 * this function shall chain the iocb on to the iocb_continueq and return the
3267 * response iocb passed in.
3269 static struct lpfc_iocbq *
3270 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3271 struct lpfc_iocbq *rspiocbp)
3273 struct lpfc_iocbq *saveq;
3274 struct lpfc_iocbq *cmdiocbp;
3275 struct lpfc_iocbq *next_iocb;
3276 IOCB_t *irsp = NULL;
3277 uint32_t free_saveq;
3278 uint8_t iocb_cmd_type;
3279 lpfc_iocb_type type;
3280 unsigned long iflag;
3281 int rc;
3283 spin_lock_irqsave(&phba->hbalock, iflag);
3284 /* First add the response iocb to the countinueq list */
3285 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3286 pring->iocb_continueq_cnt++;
3288 /* Now, determine whether the list is completed for processing */
3289 irsp = &rspiocbp->iocb;
3290 if (irsp->ulpLe) {
3292 * By default, the driver expects to free all resources
3293 * associated with this iocb completion.
3295 free_saveq = 1;
3296 saveq = list_get_first(&pring->iocb_continueq,
3297 struct lpfc_iocbq, list);
3298 irsp = &(saveq->iocb);
3299 list_del_init(&pring->iocb_continueq);
3300 pring->iocb_continueq_cnt = 0;
3302 pring->stats.iocb_rsp++;
3305 * If resource errors reported from HBA, reduce
3306 * queuedepths of the SCSI device.
3308 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3309 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3310 IOERR_NO_RESOURCES)) {
3311 spin_unlock_irqrestore(&phba->hbalock, iflag);
3312 phba->lpfc_rampdown_queue_depth(phba);
3313 spin_lock_irqsave(&phba->hbalock, iflag);
3316 if (irsp->ulpStatus) {
3317 /* Rsp ring <ringno> error: IOCB */
3318 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3319 "0328 Rsp Ring %d error: "
3320 "IOCB Data: "
3321 "x%x x%x x%x x%x "
3322 "x%x x%x x%x x%x "
3323 "x%x x%x x%x x%x "
3324 "x%x x%x x%x x%x\n",
3325 pring->ringno,
3326 irsp->un.ulpWord[0],
3327 irsp->un.ulpWord[1],
3328 irsp->un.ulpWord[2],
3329 irsp->un.ulpWord[3],
3330 irsp->un.ulpWord[4],
3331 irsp->un.ulpWord[5],
3332 *(((uint32_t *) irsp) + 6),
3333 *(((uint32_t *) irsp) + 7),
3334 *(((uint32_t *) irsp) + 8),
3335 *(((uint32_t *) irsp) + 9),
3336 *(((uint32_t *) irsp) + 10),
3337 *(((uint32_t *) irsp) + 11),
3338 *(((uint32_t *) irsp) + 12),
3339 *(((uint32_t *) irsp) + 13),
3340 *(((uint32_t *) irsp) + 14),
3341 *(((uint32_t *) irsp) + 15));
3345 * Fetch the IOCB command type and call the correct completion
3346 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3347 * get freed back to the lpfc_iocb_list by the discovery
3348 * kernel thread.
3350 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3351 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3352 switch (type) {
3353 case LPFC_SOL_IOCB:
3354 spin_unlock_irqrestore(&phba->hbalock, iflag);
3355 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3356 spin_lock_irqsave(&phba->hbalock, iflag);
3357 break;
3359 case LPFC_UNSOL_IOCB:
3360 spin_unlock_irqrestore(&phba->hbalock, iflag);
3361 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3362 spin_lock_irqsave(&phba->hbalock, iflag);
3363 if (!rc)
3364 free_saveq = 0;
3365 break;
3367 case LPFC_ABORT_IOCB:
3368 cmdiocbp = NULL;
3369 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3370 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3371 saveq);
3372 if (cmdiocbp) {
3373 /* Call the specified completion routine */
3374 if (cmdiocbp->iocb_cmpl) {
3375 spin_unlock_irqrestore(&phba->hbalock,
3376 iflag);
3377 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3378 saveq);
3379 spin_lock_irqsave(&phba->hbalock,
3380 iflag);
3381 } else
3382 __lpfc_sli_release_iocbq(phba,
3383 cmdiocbp);
3385 break;
3387 case LPFC_UNKNOWN_IOCB:
3388 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3389 char adaptermsg[LPFC_MAX_ADPTMSG];
3390 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3391 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3392 MAX_MSG_DATA);
3393 dev_warn(&((phba->pcidev)->dev),
3394 "lpfc%d: %s\n",
3395 phba->brd_no, adaptermsg);
3396 } else {
3397 /* Unknown IOCB command */
3398 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3399 "0335 Unknown IOCB "
3400 "command Data: x%x "
3401 "x%x x%x x%x\n",
3402 irsp->ulpCommand,
3403 irsp->ulpStatus,
3404 irsp->ulpIoTag,
3405 irsp->ulpContext);
3407 break;
3410 if (free_saveq) {
3411 list_for_each_entry_safe(rspiocbp, next_iocb,
3412 &saveq->list, list) {
3413 list_del_init(&rspiocbp->list);
3414 __lpfc_sli_release_iocbq(phba, rspiocbp);
3416 __lpfc_sli_release_iocbq(phba, saveq);
3418 rspiocbp = NULL;
3420 spin_unlock_irqrestore(&phba->hbalock, iflag);
3421 return rspiocbp;
3425 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3426 * @phba: Pointer to HBA context object.
3427 * @pring: Pointer to driver SLI ring object.
3428 * @mask: Host attention register mask for this ring.
3430 * This routine wraps the actual slow_ring event process routine from the
3431 * API jump table function pointer from the lpfc_hba struct.
3433 void
3434 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3435 struct lpfc_sli_ring *pring, uint32_t mask)
3437 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3441 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3442 * @phba: Pointer to HBA context object.
3443 * @pring: Pointer to driver SLI ring object.
3444 * @mask: Host attention register mask for this ring.
3446 * This function is called from the worker thread when there is a ring event
3447 * for non-fcp rings. The caller does not hold any lock. The function will
3448 * remove each response iocb in the response ring and calls the handle
3449 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3451 static void
3452 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3453 struct lpfc_sli_ring *pring, uint32_t mask)
3455 struct lpfc_pgp *pgp;
3456 IOCB_t *entry;
3457 IOCB_t *irsp = NULL;
3458 struct lpfc_iocbq *rspiocbp = NULL;
3459 uint32_t portRspPut, portRspMax;
3460 unsigned long iflag;
3461 uint32_t status;
3463 pgp = &phba->port_gp[pring->ringno];
3464 spin_lock_irqsave(&phba->hbalock, iflag);
3465 pring->stats.iocb_event++;
3468 * The next available response entry should never exceed the maximum
3469 * entries. If it does, treat it as an adapter hardware error.
3471 portRspMax = pring->sli.sli3.numRiocb;
3472 portRspPut = le32_to_cpu(pgp->rspPutInx);
3473 if (portRspPut >= portRspMax) {
3475 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3476 * rsp ring <portRspMax>
3478 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3479 "0303 Ring %d handler: portRspPut %d "
3480 "is bigger than rsp ring %d\n",
3481 pring->ringno, portRspPut, portRspMax);
3483 phba->link_state = LPFC_HBA_ERROR;
3484 spin_unlock_irqrestore(&phba->hbalock, iflag);
3486 phba->work_hs = HS_FFER3;
3487 lpfc_handle_eratt(phba);
3489 return;
3492 rmb();
3493 while (pring->sli.sli3.rspidx != portRspPut) {
3495 * Build a completion list and call the appropriate handler.
3496 * The process is to get the next available response iocb, get
3497 * a free iocb from the list, copy the response data into the
3498 * free iocb, insert to the continuation list, and update the
3499 * next response index to slim. This process makes response
3500 * iocb's in the ring available to DMA as fast as possible but
3501 * pays a penalty for a copy operation. Since the iocb is
3502 * only 32 bytes, this penalty is considered small relative to
3503 * the PCI reads for register values and a slim write. When
3504 * the ulpLe field is set, the entire Command has been
3505 * received.
3507 entry = lpfc_resp_iocb(phba, pring);
3509 phba->last_completion_time = jiffies;
3510 rspiocbp = __lpfc_sli_get_iocbq(phba);
3511 if (rspiocbp == NULL) {
3512 printk(KERN_ERR "%s: out of buffers! Failing "
3513 "completion.\n", __func__);
3514 break;
3517 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3518 phba->iocb_rsp_size);
3519 irsp = &rspiocbp->iocb;
3521 if (++pring->sli.sli3.rspidx >= portRspMax)
3522 pring->sli.sli3.rspidx = 0;
3524 if (pring->ringno == LPFC_ELS_RING) {
3525 lpfc_debugfs_slow_ring_trc(phba,
3526 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3527 *(((uint32_t *) irsp) + 4),
3528 *(((uint32_t *) irsp) + 6),
3529 *(((uint32_t *) irsp) + 7));
3532 writel(pring->sli.sli3.rspidx,
3533 &phba->host_gp[pring->ringno].rspGetInx);
3535 spin_unlock_irqrestore(&phba->hbalock, iflag);
3536 /* Handle the response IOCB */
3537 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3538 spin_lock_irqsave(&phba->hbalock, iflag);
3541 * If the port response put pointer has not been updated, sync
3542 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3543 * response put pointer.
3545 if (pring->sli.sli3.rspidx == portRspPut) {
3546 portRspPut = le32_to_cpu(pgp->rspPutInx);
3548 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3550 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
3551 /* At least one response entry has been freed */
3552 pring->stats.iocb_rsp_full++;
3553 /* SET RxRE_RSP in Chip Att register */
3554 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3555 writel(status, phba->CAregaddr);
3556 readl(phba->CAregaddr); /* flush */
3558 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3559 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3560 pring->stats.iocb_cmd_empty++;
3562 /* Force update of the local copy of cmdGetInx */
3563 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
3564 lpfc_sli_resume_iocb(phba, pring);
3566 if ((pring->lpfc_sli_cmd_available))
3567 (pring->lpfc_sli_cmd_available) (phba, pring);
3571 spin_unlock_irqrestore(&phba->hbalock, iflag);
3572 return;
3576 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3577 * @phba: Pointer to HBA context object.
3578 * @pring: Pointer to driver SLI ring object.
3579 * @mask: Host attention register mask for this ring.
3581 * This function is called from the worker thread when there is a pending
3582 * ELS response iocb on the driver internal slow-path response iocb worker
3583 * queue. The caller does not hold any lock. The function will remove each
3584 * response iocb from the response worker queue and calls the handle
3585 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3587 static void
3588 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3589 struct lpfc_sli_ring *pring, uint32_t mask)
3591 struct lpfc_iocbq *irspiocbq;
3592 struct hbq_dmabuf *dmabuf;
3593 struct lpfc_cq_event *cq_event;
3594 unsigned long iflag;
3596 spin_lock_irqsave(&phba->hbalock, iflag);
3597 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3598 spin_unlock_irqrestore(&phba->hbalock, iflag);
3599 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
3600 /* Get the response iocb from the head of work queue */
3601 spin_lock_irqsave(&phba->hbalock, iflag);
3602 list_remove_head(&phba->sli4_hba.sp_queue_event,
3603 cq_event, struct lpfc_cq_event, list);
3604 spin_unlock_irqrestore(&phba->hbalock, iflag);
3606 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3607 case CQE_CODE_COMPL_WQE:
3608 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3609 cq_event);
3610 /* Translate ELS WCQE to response IOCBQ */
3611 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3612 irspiocbq);
3613 if (irspiocbq)
3614 lpfc_sli_sp_handle_rspiocb(phba, pring,
3615 irspiocbq);
3616 break;
3617 case CQE_CODE_RECEIVE:
3618 case CQE_CODE_RECEIVE_V1:
3619 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3620 cq_event);
3621 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3622 break;
3623 default:
3624 break;
3630 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3631 * @phba: Pointer to HBA context object.
3632 * @pring: Pointer to driver SLI ring object.
3634 * This function aborts all iocbs in the given ring and frees all the iocb
3635 * objects in txq. This function issues an abort iocb for all the iocb commands
3636 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3637 * the return of this function. The caller is not required to hold any locks.
3639 void
3640 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3642 LIST_HEAD(completions);
3643 struct lpfc_iocbq *iocb, *next_iocb;
3645 if (pring->ringno == LPFC_ELS_RING) {
3646 lpfc_fabric_abort_hba(phba);
3649 /* Error everything on txq and txcmplq
3650 * First do the txq.
3652 if (phba->sli_rev >= LPFC_SLI_REV4) {
3653 spin_lock_irq(&pring->ring_lock);
3654 list_splice_init(&pring->txq, &completions);
3655 pring->txq_cnt = 0;
3656 spin_unlock_irq(&pring->ring_lock);
3658 spin_lock_irq(&phba->hbalock);
3659 /* Next issue ABTS for everything on the txcmplq */
3660 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3661 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3662 spin_unlock_irq(&phba->hbalock);
3663 } else {
3664 spin_lock_irq(&phba->hbalock);
3665 list_splice_init(&pring->txq, &completions);
3666 pring->txq_cnt = 0;
3668 /* Next issue ABTS for everything on the txcmplq */
3669 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3670 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3671 spin_unlock_irq(&phba->hbalock);
3674 /* Cancel all the IOCBs from the completions list */
3675 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3676 IOERR_SLI_ABORTED);
3680 * lpfc_sli_abort_wqe_ring - Abort all iocbs in the ring
3681 * @phba: Pointer to HBA context object.
3682 * @pring: Pointer to driver SLI ring object.
3684 * This function aborts all iocbs in the given ring and frees all the iocb
3685 * objects in txq. This function issues an abort iocb for all the iocb commands
3686 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3687 * the return of this function. The caller is not required to hold any locks.
3689 void
3690 lpfc_sli_abort_wqe_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3692 LIST_HEAD(completions);
3693 struct lpfc_iocbq *iocb, *next_iocb;
3695 if (pring->ringno == LPFC_ELS_RING)
3696 lpfc_fabric_abort_hba(phba);
3698 spin_lock_irq(&phba->hbalock);
3699 /* Next issue ABTS for everything on the txcmplq */
3700 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3701 lpfc_sli4_abort_nvme_io(phba, pring, iocb);
3702 spin_unlock_irq(&phba->hbalock);
3707 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
3708 * @phba: Pointer to HBA context object.
3709 * @pring: Pointer to driver SLI ring object.
3711 * This function aborts all iocbs in FCP rings and frees all the iocb
3712 * objects in txq. This function issues an abort iocb for all the iocb commands
3713 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3714 * the return of this function. The caller is not required to hold any locks.
3716 void
3717 lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
3719 struct lpfc_sli *psli = &phba->sli;
3720 struct lpfc_sli_ring *pring;
3721 uint32_t i;
3723 /* Look on all the FCP Rings for the iotag */
3724 if (phba->sli_rev >= LPFC_SLI_REV4) {
3725 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3726 pring = phba->sli4_hba.fcp_wq[i]->pring;
3727 lpfc_sli_abort_iocb_ring(phba, pring);
3729 } else {
3730 pring = &psli->sli3_ring[LPFC_FCP_RING];
3731 lpfc_sli_abort_iocb_ring(phba, pring);
3736 * lpfc_sli_abort_nvme_rings - Abort all wqes in all NVME rings
3737 * @phba: Pointer to HBA context object.
3739 * This function aborts all wqes in NVME rings. This function issues an
3740 * abort wqe for all the outstanding IO commands in txcmplq. The iocbs in
3741 * the txcmplq is not guaranteed to complete before the return of this
3742 * function. The caller is not required to hold any locks.
3744 void
3745 lpfc_sli_abort_nvme_rings(struct lpfc_hba *phba)
3747 struct lpfc_sli_ring *pring;
3748 uint32_t i;
3750 if (phba->sli_rev < LPFC_SLI_REV4)
3751 return;
3753 /* Abort all IO on each NVME ring. */
3754 for (i = 0; i < phba->cfg_nvme_io_channel; i++) {
3755 pring = phba->sli4_hba.nvme_wq[i]->pring;
3756 lpfc_sli_abort_wqe_ring(phba, pring);
3762 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3763 * @phba: Pointer to HBA context object.
3765 * This function flushes all iocbs in the fcp ring and frees all the iocb
3766 * objects in txq and txcmplq. This function will not issue abort iocbs
3767 * for all the iocb commands in txcmplq, they will just be returned with
3768 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3769 * slot has been permanently disabled.
3771 void
3772 lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3774 LIST_HEAD(txq);
3775 LIST_HEAD(txcmplq);
3776 struct lpfc_sli *psli = &phba->sli;
3777 struct lpfc_sli_ring *pring;
3778 uint32_t i;
3780 spin_lock_irq(&phba->hbalock);
3781 /* Indicate the I/O queues are flushed */
3782 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
3783 spin_unlock_irq(&phba->hbalock);
3785 /* Look on all the FCP Rings for the iotag */
3786 if (phba->sli_rev >= LPFC_SLI_REV4) {
3787 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3788 pring = phba->sli4_hba.fcp_wq[i]->pring;
3790 spin_lock_irq(&pring->ring_lock);
3791 /* Retrieve everything on txq */
3792 list_splice_init(&pring->txq, &txq);
3793 /* Retrieve everything on the txcmplq */
3794 list_splice_init(&pring->txcmplq, &txcmplq);
3795 pring->txq_cnt = 0;
3796 pring->txcmplq_cnt = 0;
3797 spin_unlock_irq(&pring->ring_lock);
3799 /* Flush the txq */
3800 lpfc_sli_cancel_iocbs(phba, &txq,
3801 IOSTAT_LOCAL_REJECT,
3802 IOERR_SLI_DOWN);
3803 /* Flush the txcmpq */
3804 lpfc_sli_cancel_iocbs(phba, &txcmplq,
3805 IOSTAT_LOCAL_REJECT,
3806 IOERR_SLI_DOWN);
3808 } else {
3809 pring = &psli->sli3_ring[LPFC_FCP_RING];
3811 spin_lock_irq(&phba->hbalock);
3812 /* Retrieve everything on txq */
3813 list_splice_init(&pring->txq, &txq);
3814 /* Retrieve everything on the txcmplq */
3815 list_splice_init(&pring->txcmplq, &txcmplq);
3816 pring->txq_cnt = 0;
3817 pring->txcmplq_cnt = 0;
3818 spin_unlock_irq(&phba->hbalock);
3820 /* Flush the txq */
3821 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3822 IOERR_SLI_DOWN);
3823 /* Flush the txcmpq */
3824 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3825 IOERR_SLI_DOWN);
3830 * lpfc_sli_flush_nvme_rings - flush all wqes in the nvme rings
3831 * @phba: Pointer to HBA context object.
3833 * This function flushes all wqes in the nvme rings and frees all resources
3834 * in the txcmplq. This function does not issue abort wqes for the IO
3835 * commands in txcmplq, they will just be returned with
3836 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3837 * slot has been permanently disabled.
3839 void
3840 lpfc_sli_flush_nvme_rings(struct lpfc_hba *phba)
3842 LIST_HEAD(txcmplq);
3843 struct lpfc_sli_ring *pring;
3844 uint32_t i;
3846 if (phba->sli_rev < LPFC_SLI_REV4)
3847 return;
3849 /* Hint to other driver operations that a flush is in progress. */
3850 spin_lock_irq(&phba->hbalock);
3851 phba->hba_flag |= HBA_NVME_IOQ_FLUSH;
3852 spin_unlock_irq(&phba->hbalock);
3854 /* Cycle through all NVME rings and complete each IO with
3855 * a local driver reason code. This is a flush so no
3856 * abort exchange to FW.
3858 for (i = 0; i < phba->cfg_nvme_io_channel; i++) {
3859 pring = phba->sli4_hba.nvme_wq[i]->pring;
3861 /* Retrieve everything on the txcmplq */
3862 spin_lock_irq(&pring->ring_lock);
3863 list_splice_init(&pring->txcmplq, &txcmplq);
3864 pring->txcmplq_cnt = 0;
3865 spin_unlock_irq(&pring->ring_lock);
3867 /* Flush the txcmpq &&&PAE */
3868 lpfc_sli_cancel_iocbs(phba, &txcmplq,
3869 IOSTAT_LOCAL_REJECT,
3870 IOERR_SLI_DOWN);
3875 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3876 * @phba: Pointer to HBA context object.
3877 * @mask: Bit mask to be checked.
3879 * This function reads the host status register and compares
3880 * with the provided bit mask to check if HBA completed
3881 * the restart. This function will wait in a loop for the
3882 * HBA to complete restart. If the HBA does not restart within
3883 * 15 iterations, the function will reset the HBA again. The
3884 * function returns 1 when HBA fail to restart otherwise returns
3885 * zero.
3887 static int
3888 lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
3890 uint32_t status;
3891 int i = 0;
3892 int retval = 0;
3894 /* Read the HBA Host Status Register */
3895 if (lpfc_readl(phba->HSregaddr, &status))
3896 return 1;
3899 * Check status register every 100ms for 5 retries, then every
3900 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3901 * every 2.5 sec for 4.
3902 * Break our of the loop if errors occurred during init.
3904 while (((status & mask) != mask) &&
3905 !(status & HS_FFERM) &&
3906 i++ < 20) {
3908 if (i <= 5)
3909 msleep(10);
3910 else if (i <= 10)
3911 msleep(500);
3912 else
3913 msleep(2500);
3915 if (i == 15) {
3916 /* Do post */
3917 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3918 lpfc_sli_brdrestart(phba);
3920 /* Read the HBA Host Status Register */
3921 if (lpfc_readl(phba->HSregaddr, &status)) {
3922 retval = 1;
3923 break;
3927 /* Check to see if any errors occurred during init */
3928 if ((status & HS_FFERM) || (i >= 20)) {
3929 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3930 "2751 Adapter failed to restart, "
3931 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3932 status,
3933 readl(phba->MBslimaddr + 0xa8),
3934 readl(phba->MBslimaddr + 0xac));
3935 phba->link_state = LPFC_HBA_ERROR;
3936 retval = 1;
3939 return retval;
3943 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3944 * @phba: Pointer to HBA context object.
3945 * @mask: Bit mask to be checked.
3947 * This function checks the host status register to check if HBA is
3948 * ready. This function will wait in a loop for the HBA to be ready
3949 * If the HBA is not ready , the function will will reset the HBA PCI
3950 * function again. The function returns 1 when HBA fail to be ready
3951 * otherwise returns zero.
3953 static int
3954 lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3956 uint32_t status;
3957 int retval = 0;
3959 /* Read the HBA Host Status Register */
3960 status = lpfc_sli4_post_status_check(phba);
3962 if (status) {
3963 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3964 lpfc_sli_brdrestart(phba);
3965 status = lpfc_sli4_post_status_check(phba);
3968 /* Check to see if any errors occurred during init */
3969 if (status) {
3970 phba->link_state = LPFC_HBA_ERROR;
3971 retval = 1;
3972 } else
3973 phba->sli4_hba.intr_enable = 0;
3975 return retval;
3979 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3980 * @phba: Pointer to HBA context object.
3981 * @mask: Bit mask to be checked.
3983 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3984 * from the API jump table function pointer from the lpfc_hba struct.
3987 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3989 return phba->lpfc_sli_brdready(phba, mask);
3992 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3995 * lpfc_reset_barrier - Make HBA ready for HBA reset
3996 * @phba: Pointer to HBA context object.
3998 * This function is called before resetting an HBA. This function is called
3999 * with hbalock held and requests HBA to quiesce DMAs before a reset.
4001 void lpfc_reset_barrier(struct lpfc_hba *phba)
4003 uint32_t __iomem *resp_buf;
4004 uint32_t __iomem *mbox_buf;
4005 volatile uint32_t mbox;
4006 uint32_t hc_copy, ha_copy, resp_data;
4007 int i;
4008 uint8_t hdrtype;
4010 lockdep_assert_held(&phba->hbalock);
4012 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
4013 if (hdrtype != 0x80 ||
4014 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
4015 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
4016 return;
4019 * Tell the other part of the chip to suspend temporarily all
4020 * its DMA activity.
4022 resp_buf = phba->MBslimaddr;
4024 /* Disable the error attention */
4025 if (lpfc_readl(phba->HCregaddr, &hc_copy))
4026 return;
4027 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
4028 readl(phba->HCregaddr); /* flush */
4029 phba->link_flag |= LS_IGNORE_ERATT;
4031 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4032 return;
4033 if (ha_copy & HA_ERATT) {
4034 /* Clear Chip error bit */
4035 writel(HA_ERATT, phba->HAregaddr);
4036 phba->pport->stopped = 1;
4039 mbox = 0;
4040 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
4041 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
4043 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
4044 mbox_buf = phba->MBslimaddr;
4045 writel(mbox, mbox_buf);
4047 for (i = 0; i < 50; i++) {
4048 if (lpfc_readl((resp_buf + 1), &resp_data))
4049 return;
4050 if (resp_data != ~(BARRIER_TEST_PATTERN))
4051 mdelay(1);
4052 else
4053 break;
4055 resp_data = 0;
4056 if (lpfc_readl((resp_buf + 1), &resp_data))
4057 return;
4058 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
4059 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
4060 phba->pport->stopped)
4061 goto restore_hc;
4062 else
4063 goto clear_errat;
4066 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
4067 resp_data = 0;
4068 for (i = 0; i < 500; i++) {
4069 if (lpfc_readl(resp_buf, &resp_data))
4070 return;
4071 if (resp_data != mbox)
4072 mdelay(1);
4073 else
4074 break;
4077 clear_errat:
4079 while (++i < 500) {
4080 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4081 return;
4082 if (!(ha_copy & HA_ERATT))
4083 mdelay(1);
4084 else
4085 break;
4088 if (readl(phba->HAregaddr) & HA_ERATT) {
4089 writel(HA_ERATT, phba->HAregaddr);
4090 phba->pport->stopped = 1;
4093 restore_hc:
4094 phba->link_flag &= ~LS_IGNORE_ERATT;
4095 writel(hc_copy, phba->HCregaddr);
4096 readl(phba->HCregaddr); /* flush */
4100 * lpfc_sli_brdkill - Issue a kill_board mailbox command
4101 * @phba: Pointer to HBA context object.
4103 * This function issues a kill_board mailbox command and waits for
4104 * the error attention interrupt. This function is called for stopping
4105 * the firmware processing. The caller is not required to hold any
4106 * locks. This function calls lpfc_hba_down_post function to free
4107 * any pending commands after the kill. The function will return 1 when it
4108 * fails to kill the board else will return 0.
4111 lpfc_sli_brdkill(struct lpfc_hba *phba)
4113 struct lpfc_sli *psli;
4114 LPFC_MBOXQ_t *pmb;
4115 uint32_t status;
4116 uint32_t ha_copy;
4117 int retval;
4118 int i = 0;
4120 psli = &phba->sli;
4122 /* Kill HBA */
4123 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4124 "0329 Kill HBA Data: x%x x%x\n",
4125 phba->pport->port_state, psli->sli_flag);
4127 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4128 if (!pmb)
4129 return 1;
4131 /* Disable the error attention */
4132 spin_lock_irq(&phba->hbalock);
4133 if (lpfc_readl(phba->HCregaddr, &status)) {
4134 spin_unlock_irq(&phba->hbalock);
4135 mempool_free(pmb, phba->mbox_mem_pool);
4136 return 1;
4138 status &= ~HC_ERINT_ENA;
4139 writel(status, phba->HCregaddr);
4140 readl(phba->HCregaddr); /* flush */
4141 phba->link_flag |= LS_IGNORE_ERATT;
4142 spin_unlock_irq(&phba->hbalock);
4144 lpfc_kill_board(phba, pmb);
4145 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4146 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4148 if (retval != MBX_SUCCESS) {
4149 if (retval != MBX_BUSY)
4150 mempool_free(pmb, phba->mbox_mem_pool);
4151 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4152 "2752 KILL_BOARD command failed retval %d\n",
4153 retval);
4154 spin_lock_irq(&phba->hbalock);
4155 phba->link_flag &= ~LS_IGNORE_ERATT;
4156 spin_unlock_irq(&phba->hbalock);
4157 return 1;
4160 spin_lock_irq(&phba->hbalock);
4161 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
4162 spin_unlock_irq(&phba->hbalock);
4164 mempool_free(pmb, phba->mbox_mem_pool);
4166 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
4167 * attention every 100ms for 3 seconds. If we don't get ERATT after
4168 * 3 seconds we still set HBA_ERROR state because the status of the
4169 * board is now undefined.
4171 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4172 return 1;
4173 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
4174 mdelay(100);
4175 if (lpfc_readl(phba->HAregaddr, &ha_copy))
4176 return 1;
4179 del_timer_sync(&psli->mbox_tmo);
4180 if (ha_copy & HA_ERATT) {
4181 writel(HA_ERATT, phba->HAregaddr);
4182 phba->pport->stopped = 1;
4184 spin_lock_irq(&phba->hbalock);
4185 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4186 psli->mbox_active = NULL;
4187 phba->link_flag &= ~LS_IGNORE_ERATT;
4188 spin_unlock_irq(&phba->hbalock);
4190 lpfc_hba_down_post(phba);
4191 phba->link_state = LPFC_HBA_ERROR;
4193 return ha_copy & HA_ERATT ? 0 : 1;
4197 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
4198 * @phba: Pointer to HBA context object.
4200 * This function resets the HBA by writing HC_INITFF to the control
4201 * register. After the HBA resets, this function resets all the iocb ring
4202 * indices. This function disables PCI layer parity checking during
4203 * the reset.
4204 * This function returns 0 always.
4205 * The caller is not required to hold any locks.
4208 lpfc_sli_brdreset(struct lpfc_hba *phba)
4210 struct lpfc_sli *psli;
4211 struct lpfc_sli_ring *pring;
4212 uint16_t cfg_value;
4213 int i;
4215 psli = &phba->sli;
4217 /* Reset HBA */
4218 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4219 "0325 Reset HBA Data: x%x x%x\n",
4220 (phba->pport) ? phba->pport->port_state : 0,
4221 psli->sli_flag);
4223 /* perform board reset */
4224 phba->fc_eventTag = 0;
4225 phba->link_events = 0;
4226 if (phba->pport) {
4227 phba->pport->fc_myDID = 0;
4228 phba->pport->fc_prevDID = 0;
4231 /* Turn off parity checking and serr during the physical reset */
4232 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4233 pci_write_config_word(phba->pcidev, PCI_COMMAND,
4234 (cfg_value &
4235 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4237 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
4239 /* Now toggle INITFF bit in the Host Control Register */
4240 writel(HC_INITFF, phba->HCregaddr);
4241 mdelay(1);
4242 readl(phba->HCregaddr); /* flush */
4243 writel(0, phba->HCregaddr);
4244 readl(phba->HCregaddr); /* flush */
4246 /* Restore PCI cmd register */
4247 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4249 /* Initialize relevant SLI info */
4250 for (i = 0; i < psli->num_rings; i++) {
4251 pring = &psli->sli3_ring[i];
4252 pring->flag = 0;
4253 pring->sli.sli3.rspidx = 0;
4254 pring->sli.sli3.next_cmdidx = 0;
4255 pring->sli.sli3.local_getidx = 0;
4256 pring->sli.sli3.cmdidx = 0;
4257 pring->missbufcnt = 0;
4260 phba->link_state = LPFC_WARM_START;
4261 return 0;
4265 * lpfc_sli4_brdreset - Reset a sli-4 HBA
4266 * @phba: Pointer to HBA context object.
4268 * This function resets a SLI4 HBA. This function disables PCI layer parity
4269 * checking during resets the device. The caller is not required to hold
4270 * any locks.
4272 * This function returns 0 always.
4275 lpfc_sli4_brdreset(struct lpfc_hba *phba)
4277 struct lpfc_sli *psli = &phba->sli;
4278 uint16_t cfg_value;
4279 int rc = 0;
4281 /* Reset HBA */
4282 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4283 "0295 Reset HBA Data: x%x x%x x%x\n",
4284 phba->pport->port_state, psli->sli_flag,
4285 phba->hba_flag);
4287 /* perform board reset */
4288 phba->fc_eventTag = 0;
4289 phba->link_events = 0;
4290 phba->pport->fc_myDID = 0;
4291 phba->pport->fc_prevDID = 0;
4293 spin_lock_irq(&phba->hbalock);
4294 psli->sli_flag &= ~(LPFC_PROCESS_LA);
4295 phba->fcf.fcf_flag = 0;
4296 spin_unlock_irq(&phba->hbalock);
4298 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
4299 if (phba->hba_flag & HBA_FW_DUMP_OP) {
4300 phba->hba_flag &= ~HBA_FW_DUMP_OP;
4301 return rc;
4304 /* Now physically reset the device */
4305 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4306 "0389 Performing PCI function reset!\n");
4308 /* Turn off parity checking and serr during the physical reset */
4309 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4310 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
4311 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4313 /* Perform FCoE PCI function reset before freeing queue memory */
4314 rc = lpfc_pci_function_reset(phba);
4316 /* Restore PCI cmd register */
4317 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4319 return rc;
4323 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
4324 * @phba: Pointer to HBA context object.
4326 * This function is called in the SLI initialization code path to
4327 * restart the HBA. The caller is not required to hold any lock.
4328 * This function writes MBX_RESTART mailbox command to the SLIM and
4329 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4330 * function to free any pending commands. The function enables
4331 * POST only during the first initialization. The function returns zero.
4332 * The function does not guarantee completion of MBX_RESTART mailbox
4333 * command before the return of this function.
4335 static int
4336 lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
4338 MAILBOX_t *mb;
4339 struct lpfc_sli *psli;
4340 volatile uint32_t word0;
4341 void __iomem *to_slim;
4342 uint32_t hba_aer_enabled;
4344 spin_lock_irq(&phba->hbalock);
4346 /* Take PCIe device Advanced Error Reporting (AER) state */
4347 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4349 psli = &phba->sli;
4351 /* Restart HBA */
4352 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4353 "0337 Restart HBA Data: x%x x%x\n",
4354 (phba->pport) ? phba->pport->port_state : 0,
4355 psli->sli_flag);
4357 word0 = 0;
4358 mb = (MAILBOX_t *) &word0;
4359 mb->mbxCommand = MBX_RESTART;
4360 mb->mbxHc = 1;
4362 lpfc_reset_barrier(phba);
4364 to_slim = phba->MBslimaddr;
4365 writel(*(uint32_t *) mb, to_slim);
4366 readl(to_slim); /* flush */
4368 /* Only skip post after fc_ffinit is completed */
4369 if (phba->pport && phba->pport->port_state)
4370 word0 = 1; /* This is really setting up word1 */
4371 else
4372 word0 = 0; /* This is really setting up word1 */
4373 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4374 writel(*(uint32_t *) mb, to_slim);
4375 readl(to_slim); /* flush */
4377 lpfc_sli_brdreset(phba);
4378 if (phba->pport)
4379 phba->pport->stopped = 0;
4380 phba->link_state = LPFC_INIT_START;
4381 phba->hba_flag = 0;
4382 spin_unlock_irq(&phba->hbalock);
4384 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4385 psli->stats_start = get_seconds();
4387 /* Give the INITFF and Post time to settle. */
4388 mdelay(100);
4390 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4391 if (hba_aer_enabled)
4392 pci_disable_pcie_error_reporting(phba->pcidev);
4394 lpfc_hba_down_post(phba);
4396 return 0;
4400 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4401 * @phba: Pointer to HBA context object.
4403 * This function is called in the SLI initialization code path to restart
4404 * a SLI4 HBA. The caller is not required to hold any lock.
4405 * At the end of the function, it calls lpfc_hba_down_post function to
4406 * free any pending commands.
4408 static int
4409 lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4411 struct lpfc_sli *psli = &phba->sli;
4412 uint32_t hba_aer_enabled;
4413 int rc;
4415 /* Restart HBA */
4416 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4417 "0296 Restart HBA Data: x%x x%x\n",
4418 phba->pport->port_state, psli->sli_flag);
4420 /* Take PCIe device Advanced Error Reporting (AER) state */
4421 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4423 rc = lpfc_sli4_brdreset(phba);
4425 spin_lock_irq(&phba->hbalock);
4426 phba->pport->stopped = 0;
4427 phba->link_state = LPFC_INIT_START;
4428 phba->hba_flag = 0;
4429 spin_unlock_irq(&phba->hbalock);
4431 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4432 psli->stats_start = get_seconds();
4434 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4435 if (hba_aer_enabled)
4436 pci_disable_pcie_error_reporting(phba->pcidev);
4438 lpfc_hba_down_post(phba);
4439 lpfc_sli4_queue_destroy(phba);
4441 return rc;
4445 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4446 * @phba: Pointer to HBA context object.
4448 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4449 * API jump table function pointer from the lpfc_hba struct.
4452 lpfc_sli_brdrestart(struct lpfc_hba *phba)
4454 return phba->lpfc_sli_brdrestart(phba);
4458 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4459 * @phba: Pointer to HBA context object.
4461 * This function is called after a HBA restart to wait for successful
4462 * restart of the HBA. Successful restart of the HBA is indicated by
4463 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4464 * iteration, the function will restart the HBA again. The function returns
4465 * zero if HBA successfully restarted else returns negative error code.
4468 lpfc_sli_chipset_init(struct lpfc_hba *phba)
4470 uint32_t status, i = 0;
4472 /* Read the HBA Host Status Register */
4473 if (lpfc_readl(phba->HSregaddr, &status))
4474 return -EIO;
4476 /* Check status register to see what current state is */
4477 i = 0;
4478 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4480 /* Check every 10ms for 10 retries, then every 100ms for 90
4481 * retries, then every 1 sec for 50 retires for a total of
4482 * ~60 seconds before reset the board again and check every
4483 * 1 sec for 50 retries. The up to 60 seconds before the
4484 * board ready is required by the Falcon FIPS zeroization
4485 * complete, and any reset the board in between shall cause
4486 * restart of zeroization, further delay the board ready.
4488 if (i++ >= 200) {
4489 /* Adapter failed to init, timeout, status reg
4490 <status> */
4491 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4492 "0436 Adapter failed to init, "
4493 "timeout, status reg x%x, "
4494 "FW Data: A8 x%x AC x%x\n", status,
4495 readl(phba->MBslimaddr + 0xa8),
4496 readl(phba->MBslimaddr + 0xac));
4497 phba->link_state = LPFC_HBA_ERROR;
4498 return -ETIMEDOUT;
4501 /* Check to see if any errors occurred during init */
4502 if (status & HS_FFERM) {
4503 /* ERROR: During chipset initialization */
4504 /* Adapter failed to init, chipset, status reg
4505 <status> */
4506 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4507 "0437 Adapter failed to init, "
4508 "chipset, status reg x%x, "
4509 "FW Data: A8 x%x AC x%x\n", status,
4510 readl(phba->MBslimaddr + 0xa8),
4511 readl(phba->MBslimaddr + 0xac));
4512 phba->link_state = LPFC_HBA_ERROR;
4513 return -EIO;
4516 if (i <= 10)
4517 msleep(10);
4518 else if (i <= 100)
4519 msleep(100);
4520 else
4521 msleep(1000);
4523 if (i == 150) {
4524 /* Do post */
4525 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4526 lpfc_sli_brdrestart(phba);
4528 /* Read the HBA Host Status Register */
4529 if (lpfc_readl(phba->HSregaddr, &status))
4530 return -EIO;
4533 /* Check to see if any errors occurred during init */
4534 if (status & HS_FFERM) {
4535 /* ERROR: During chipset initialization */
4536 /* Adapter failed to init, chipset, status reg <status> */
4537 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4538 "0438 Adapter failed to init, chipset, "
4539 "status reg x%x, "
4540 "FW Data: A8 x%x AC x%x\n", status,
4541 readl(phba->MBslimaddr + 0xa8),
4542 readl(phba->MBslimaddr + 0xac));
4543 phba->link_state = LPFC_HBA_ERROR;
4544 return -EIO;
4547 /* Clear all interrupt enable conditions */
4548 writel(0, phba->HCregaddr);
4549 readl(phba->HCregaddr); /* flush */
4551 /* setup host attn register */
4552 writel(0xffffffff, phba->HAregaddr);
4553 readl(phba->HAregaddr); /* flush */
4554 return 0;
4558 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4560 * This function calculates and returns the number of HBQs required to be
4561 * configured.
4564 lpfc_sli_hbq_count(void)
4566 return ARRAY_SIZE(lpfc_hbq_defs);
4570 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4572 * This function adds the number of hbq entries in every HBQ to get
4573 * the total number of hbq entries required for the HBA and returns
4574 * the total count.
4576 static int
4577 lpfc_sli_hbq_entry_count(void)
4579 int hbq_count = lpfc_sli_hbq_count();
4580 int count = 0;
4581 int i;
4583 for (i = 0; i < hbq_count; ++i)
4584 count += lpfc_hbq_defs[i]->entry_count;
4585 return count;
4589 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4591 * This function calculates amount of memory required for all hbq entries
4592 * to be configured and returns the total memory required.
4595 lpfc_sli_hbq_size(void)
4597 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4601 * lpfc_sli_hbq_setup - configure and initialize HBQs
4602 * @phba: Pointer to HBA context object.
4604 * This function is called during the SLI initialization to configure
4605 * all the HBQs and post buffers to the HBQ. The caller is not
4606 * required to hold any locks. This function will return zero if successful
4607 * else it will return negative error code.
4609 static int
4610 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4612 int hbq_count = lpfc_sli_hbq_count();
4613 LPFC_MBOXQ_t *pmb;
4614 MAILBOX_t *pmbox;
4615 uint32_t hbqno;
4616 uint32_t hbq_entry_index;
4618 /* Get a Mailbox buffer to setup mailbox
4619 * commands for HBA initialization
4621 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4623 if (!pmb)
4624 return -ENOMEM;
4626 pmbox = &pmb->u.mb;
4628 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4629 phba->link_state = LPFC_INIT_MBX_CMDS;
4630 phba->hbq_in_use = 1;
4632 hbq_entry_index = 0;
4633 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4634 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4635 phba->hbqs[hbqno].hbqPutIdx = 0;
4636 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4637 phba->hbqs[hbqno].entry_count =
4638 lpfc_hbq_defs[hbqno]->entry_count;
4639 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4640 hbq_entry_index, pmb);
4641 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4643 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4644 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4645 mbxStatus <status>, ring <num> */
4647 lpfc_printf_log(phba, KERN_ERR,
4648 LOG_SLI | LOG_VPORT,
4649 "1805 Adapter failed to init. "
4650 "Data: x%x x%x x%x\n",
4651 pmbox->mbxCommand,
4652 pmbox->mbxStatus, hbqno);
4654 phba->link_state = LPFC_HBA_ERROR;
4655 mempool_free(pmb, phba->mbox_mem_pool);
4656 return -ENXIO;
4659 phba->hbq_count = hbq_count;
4661 mempool_free(pmb, phba->mbox_mem_pool);
4663 /* Initially populate or replenish the HBQs */
4664 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4665 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
4666 return 0;
4670 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4671 * @phba: Pointer to HBA context object.
4673 * This function is called during the SLI initialization to configure
4674 * all the HBQs and post buffers to the HBQ. The caller is not
4675 * required to hold any locks. This function will return zero if successful
4676 * else it will return negative error code.
4678 static int
4679 lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4681 phba->hbq_in_use = 1;
4682 phba->hbqs[LPFC_ELS_HBQ].entry_count =
4683 lpfc_hbq_defs[LPFC_ELS_HBQ]->entry_count;
4684 phba->hbq_count = 1;
4685 lpfc_sli_hbqbuf_init_hbqs(phba, LPFC_ELS_HBQ);
4686 /* Initially populate or replenish the HBQs */
4687 return 0;
4691 * lpfc_sli_config_port - Issue config port mailbox command
4692 * @phba: Pointer to HBA context object.
4693 * @sli_mode: sli mode - 2/3
4695 * This function is called by the sli initialization code path
4696 * to issue config_port mailbox command. This function restarts the
4697 * HBA firmware and issues a config_port mailbox command to configure
4698 * the SLI interface in the sli mode specified by sli_mode
4699 * variable. The caller is not required to hold any locks.
4700 * The function returns 0 if successful, else returns negative error
4701 * code.
4704 lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
4706 LPFC_MBOXQ_t *pmb;
4707 uint32_t resetcount = 0, rc = 0, done = 0;
4709 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4710 if (!pmb) {
4711 phba->link_state = LPFC_HBA_ERROR;
4712 return -ENOMEM;
4715 phba->sli_rev = sli_mode;
4716 while (resetcount < 2 && !done) {
4717 spin_lock_irq(&phba->hbalock);
4718 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4719 spin_unlock_irq(&phba->hbalock);
4720 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
4721 lpfc_sli_brdrestart(phba);
4722 rc = lpfc_sli_chipset_init(phba);
4723 if (rc)
4724 break;
4726 spin_lock_irq(&phba->hbalock);
4727 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4728 spin_unlock_irq(&phba->hbalock);
4729 resetcount++;
4731 /* Call pre CONFIG_PORT mailbox command initialization. A
4732 * value of 0 means the call was successful. Any other
4733 * nonzero value is a failure, but if ERESTART is returned,
4734 * the driver may reset the HBA and try again.
4736 rc = lpfc_config_port_prep(phba);
4737 if (rc == -ERESTART) {
4738 phba->link_state = LPFC_LINK_UNKNOWN;
4739 continue;
4740 } else if (rc)
4741 break;
4743 phba->link_state = LPFC_INIT_MBX_CMDS;
4744 lpfc_config_port(phba, pmb);
4745 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
4746 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4747 LPFC_SLI3_HBQ_ENABLED |
4748 LPFC_SLI3_CRP_ENABLED |
4749 LPFC_SLI3_BG_ENABLED |
4750 LPFC_SLI3_DSS_ENABLED);
4751 if (rc != MBX_SUCCESS) {
4752 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4753 "0442 Adapter failed to init, mbxCmd x%x "
4754 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4755 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
4756 spin_lock_irq(&phba->hbalock);
4757 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
4758 spin_unlock_irq(&phba->hbalock);
4759 rc = -ENXIO;
4760 } else {
4761 /* Allow asynchronous mailbox command to go through */
4762 spin_lock_irq(&phba->hbalock);
4763 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4764 spin_unlock_irq(&phba->hbalock);
4765 done = 1;
4767 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4768 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4769 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4770 "3110 Port did not grant ASABT\n");
4773 if (!done) {
4774 rc = -EINVAL;
4775 goto do_prep_failed;
4777 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4778 if (!pmb->u.mb.un.varCfgPort.cMA) {
4779 rc = -ENXIO;
4780 goto do_prep_failed;
4782 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
4783 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
4784 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4785 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4786 phba->max_vpi : phba->max_vports;
4788 } else
4789 phba->max_vpi = 0;
4790 phba->fips_level = 0;
4791 phba->fips_spec_rev = 0;
4792 if (pmb->u.mb.un.varCfgPort.gdss) {
4793 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
4794 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4795 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4796 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4797 "2850 Security Crypto Active. FIPS x%d "
4798 "(Spec Rev: x%d)",
4799 phba->fips_level, phba->fips_spec_rev);
4801 if (pmb->u.mb.un.varCfgPort.sec_err) {
4802 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4803 "2856 Config Port Security Crypto "
4804 "Error: x%x ",
4805 pmb->u.mb.un.varCfgPort.sec_err);
4807 if (pmb->u.mb.un.varCfgPort.gerbm)
4808 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
4809 if (pmb->u.mb.un.varCfgPort.gcrp)
4810 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
4812 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4813 phba->port_gp = phba->mbox->us.s3_pgp.port;
4815 if (phba->cfg_enable_bg) {
4816 if (pmb->u.mb.un.varCfgPort.gbg)
4817 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4818 else
4819 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4820 "0443 Adapter did not grant "
4821 "BlockGuard\n");
4823 } else {
4824 phba->hbq_get = NULL;
4825 phba->port_gp = phba->mbox->us.s2.port;
4826 phba->max_vpi = 0;
4828 do_prep_failed:
4829 mempool_free(pmb, phba->mbox_mem_pool);
4830 return rc;
4835 * lpfc_sli_hba_setup - SLI initialization function
4836 * @phba: Pointer to HBA context object.
4838 * This function is the main SLI initialization function. This function
4839 * is called by the HBA initialization code, HBA reset code and HBA
4840 * error attention handler code. Caller is not required to hold any
4841 * locks. This function issues config_port mailbox command to configure
4842 * the SLI, setup iocb rings and HBQ rings. In the end the function
4843 * calls the config_port_post function to issue init_link mailbox
4844 * command and to start the discovery. The function will return zero
4845 * if successful, else it will return negative error code.
4848 lpfc_sli_hba_setup(struct lpfc_hba *phba)
4850 uint32_t rc;
4851 int mode = 3, i;
4852 int longs;
4854 switch (phba->cfg_sli_mode) {
4855 case 2:
4856 if (phba->cfg_enable_npiv) {
4857 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4858 "1824 NPIV enabled: Override sli_mode "
4859 "parameter (%d) to auto (0).\n",
4860 phba->cfg_sli_mode);
4861 break;
4863 mode = 2;
4864 break;
4865 case 0:
4866 case 3:
4867 break;
4868 default:
4869 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4870 "1819 Unrecognized sli_mode parameter: %d.\n",
4871 phba->cfg_sli_mode);
4873 break;
4875 phba->fcp_embed_io = 0; /* SLI4 FC support only */
4877 rc = lpfc_sli_config_port(phba, mode);
4879 if (rc && phba->cfg_sli_mode == 3)
4880 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
4881 "1820 Unable to select SLI-3. "
4882 "Not supported by adapter.\n");
4883 if (rc && mode != 2)
4884 rc = lpfc_sli_config_port(phba, 2);
4885 else if (rc && mode == 2)
4886 rc = lpfc_sli_config_port(phba, 3);
4887 if (rc)
4888 goto lpfc_sli_hba_setup_error;
4890 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4891 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4892 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4893 if (!rc) {
4894 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4895 "2709 This device supports "
4896 "Advanced Error Reporting (AER)\n");
4897 spin_lock_irq(&phba->hbalock);
4898 phba->hba_flag |= HBA_AER_ENABLED;
4899 spin_unlock_irq(&phba->hbalock);
4900 } else {
4901 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4902 "2708 This device does not support "
4903 "Advanced Error Reporting (AER): %d\n",
4904 rc);
4905 phba->cfg_aer_support = 0;
4909 if (phba->sli_rev == 3) {
4910 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4911 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
4912 } else {
4913 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4914 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
4915 phba->sli3_options = 0;
4918 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4919 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4920 phba->sli_rev, phba->max_vpi);
4921 rc = lpfc_sli_ring_map(phba);
4923 if (rc)
4924 goto lpfc_sli_hba_setup_error;
4926 /* Initialize VPIs. */
4927 if (phba->sli_rev == LPFC_SLI_REV3) {
4929 * The VPI bitmask and physical ID array are allocated
4930 * and initialized once only - at driver load. A port
4931 * reset doesn't need to reinitialize this memory.
4933 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
4934 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
4935 phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long),
4936 GFP_KERNEL);
4937 if (!phba->vpi_bmask) {
4938 rc = -ENOMEM;
4939 goto lpfc_sli_hba_setup_error;
4942 phba->vpi_ids = kzalloc(
4943 (phba->max_vpi+1) * sizeof(uint16_t),
4944 GFP_KERNEL);
4945 if (!phba->vpi_ids) {
4946 kfree(phba->vpi_bmask);
4947 rc = -ENOMEM;
4948 goto lpfc_sli_hba_setup_error;
4950 for (i = 0; i < phba->max_vpi; i++)
4951 phba->vpi_ids[i] = i;
4955 /* Init HBQs */
4956 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4957 rc = lpfc_sli_hbq_setup(phba);
4958 if (rc)
4959 goto lpfc_sli_hba_setup_error;
4961 spin_lock_irq(&phba->hbalock);
4962 phba->sli.sli_flag |= LPFC_PROCESS_LA;
4963 spin_unlock_irq(&phba->hbalock);
4965 rc = lpfc_config_port_post(phba);
4966 if (rc)
4967 goto lpfc_sli_hba_setup_error;
4969 return rc;
4971 lpfc_sli_hba_setup_error:
4972 phba->link_state = LPFC_HBA_ERROR;
4973 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4974 "0445 Firmware initialization failed\n");
4975 return rc;
4979 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4980 * @phba: Pointer to HBA context object.
4981 * @mboxq: mailbox pointer.
4982 * This function issue a dump mailbox command to read config region
4983 * 23 and parse the records in the region and populate driver
4984 * data structure.
4986 static int
4987 lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
4989 LPFC_MBOXQ_t *mboxq;
4990 struct lpfc_dmabuf *mp;
4991 struct lpfc_mqe *mqe;
4992 uint32_t data_length;
4993 int rc;
4995 /* Program the default value of vlan_id and fc_map */
4996 phba->valid_vlan = 0;
4997 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4998 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4999 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
5001 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5002 if (!mboxq)
5003 return -ENOMEM;
5005 mqe = &mboxq->u.mqe;
5006 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
5007 rc = -ENOMEM;
5008 goto out_free_mboxq;
5011 mp = (struct lpfc_dmabuf *) mboxq->context1;
5012 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5014 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5015 "(%d):2571 Mailbox cmd x%x Status x%x "
5016 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5017 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
5018 "CQ: x%x x%x x%x x%x\n",
5019 mboxq->vport ? mboxq->vport->vpi : 0,
5020 bf_get(lpfc_mqe_command, mqe),
5021 bf_get(lpfc_mqe_status, mqe),
5022 mqe->un.mb_words[0], mqe->un.mb_words[1],
5023 mqe->un.mb_words[2], mqe->un.mb_words[3],
5024 mqe->un.mb_words[4], mqe->un.mb_words[5],
5025 mqe->un.mb_words[6], mqe->un.mb_words[7],
5026 mqe->un.mb_words[8], mqe->un.mb_words[9],
5027 mqe->un.mb_words[10], mqe->un.mb_words[11],
5028 mqe->un.mb_words[12], mqe->un.mb_words[13],
5029 mqe->un.mb_words[14], mqe->un.mb_words[15],
5030 mqe->un.mb_words[16], mqe->un.mb_words[50],
5031 mboxq->mcqe.word0,
5032 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5033 mboxq->mcqe.trailer);
5035 if (rc) {
5036 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5037 kfree(mp);
5038 rc = -EIO;
5039 goto out_free_mboxq;
5041 data_length = mqe->un.mb_words[5];
5042 if (data_length > DMP_RGN23_SIZE) {
5043 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5044 kfree(mp);
5045 rc = -EIO;
5046 goto out_free_mboxq;
5049 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
5050 lpfc_mbuf_free(phba, mp->virt, mp->phys);
5051 kfree(mp);
5052 rc = 0;
5054 out_free_mboxq:
5055 mempool_free(mboxq, phba->mbox_mem_pool);
5056 return rc;
5060 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
5061 * @phba: pointer to lpfc hba data structure.
5062 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
5063 * @vpd: pointer to the memory to hold resulting port vpd data.
5064 * @vpd_size: On input, the number of bytes allocated to @vpd.
5065 * On output, the number of data bytes in @vpd.
5067 * This routine executes a READ_REV SLI4 mailbox command. In
5068 * addition, this routine gets the port vpd data.
5070 * Return codes
5071 * 0 - successful
5072 * -ENOMEM - could not allocated memory.
5074 static int
5075 lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5076 uint8_t *vpd, uint32_t *vpd_size)
5078 int rc = 0;
5079 uint32_t dma_size;
5080 struct lpfc_dmabuf *dmabuf;
5081 struct lpfc_mqe *mqe;
5083 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5084 if (!dmabuf)
5085 return -ENOMEM;
5088 * Get a DMA buffer for the vpd data resulting from the READ_REV
5089 * mailbox command.
5091 dma_size = *vpd_size;
5092 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, dma_size,
5093 &dmabuf->phys, GFP_KERNEL);
5094 if (!dmabuf->virt) {
5095 kfree(dmabuf);
5096 return -ENOMEM;
5100 * The SLI4 implementation of READ_REV conflicts at word1,
5101 * bits 31:16 and SLI4 adds vpd functionality not present
5102 * in SLI3. This code corrects the conflicts.
5104 lpfc_read_rev(phba, mboxq);
5105 mqe = &mboxq->u.mqe;
5106 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
5107 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
5108 mqe->un.read_rev.word1 &= 0x0000FFFF;
5109 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
5110 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
5112 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5113 if (rc) {
5114 dma_free_coherent(&phba->pcidev->dev, dma_size,
5115 dmabuf->virt, dmabuf->phys);
5116 kfree(dmabuf);
5117 return -EIO;
5121 * The available vpd length cannot be bigger than the
5122 * DMA buffer passed to the port. Catch the less than
5123 * case and update the caller's size.
5125 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
5126 *vpd_size = mqe->un.read_rev.avail_vpd_len;
5128 memcpy(vpd, dmabuf->virt, *vpd_size);
5130 dma_free_coherent(&phba->pcidev->dev, dma_size,
5131 dmabuf->virt, dmabuf->phys);
5132 kfree(dmabuf);
5133 return 0;
5137 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
5138 * @phba: pointer to lpfc hba data structure.
5140 * This routine retrieves SLI4 device physical port name this PCI function
5141 * is attached to.
5143 * Return codes
5144 * 0 - successful
5145 * otherwise - failed to retrieve physical port name
5147 static int
5148 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
5150 LPFC_MBOXQ_t *mboxq;
5151 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
5152 struct lpfc_controller_attribute *cntl_attr;
5153 struct lpfc_mbx_get_port_name *get_port_name;
5154 void *virtaddr = NULL;
5155 uint32_t alloclen, reqlen;
5156 uint32_t shdr_status, shdr_add_status;
5157 union lpfc_sli4_cfg_shdr *shdr;
5158 char cport_name = 0;
5159 int rc;
5161 /* We assume nothing at this point */
5162 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5163 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
5165 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5166 if (!mboxq)
5167 return -ENOMEM;
5168 /* obtain link type and link number via READ_CONFIG */
5169 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
5170 lpfc_sli4_read_config(phba);
5171 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
5172 goto retrieve_ppname;
5174 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
5175 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
5176 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5177 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
5178 LPFC_SLI4_MBX_NEMBED);
5179 if (alloclen < reqlen) {
5180 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5181 "3084 Allocated DMA memory size (%d) is "
5182 "less than the requested DMA memory size "
5183 "(%d)\n", alloclen, reqlen);
5184 rc = -ENOMEM;
5185 goto out_free_mboxq;
5187 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5188 virtaddr = mboxq->sge_array->addr[0];
5189 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
5190 shdr = &mbx_cntl_attr->cfg_shdr;
5191 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5192 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5193 if (shdr_status || shdr_add_status || rc) {
5194 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5195 "3085 Mailbox x%x (x%x/x%x) failed, "
5196 "rc:x%x, status:x%x, add_status:x%x\n",
5197 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5198 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5199 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5200 rc, shdr_status, shdr_add_status);
5201 rc = -ENXIO;
5202 goto out_free_mboxq;
5204 cntl_attr = &mbx_cntl_attr->cntl_attr;
5205 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
5206 phba->sli4_hba.lnk_info.lnk_tp =
5207 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
5208 phba->sli4_hba.lnk_info.lnk_no =
5209 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
5210 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5211 "3086 lnk_type:%d, lnk_numb:%d\n",
5212 phba->sli4_hba.lnk_info.lnk_tp,
5213 phba->sli4_hba.lnk_info.lnk_no);
5215 retrieve_ppname:
5216 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
5217 LPFC_MBOX_OPCODE_GET_PORT_NAME,
5218 sizeof(struct lpfc_mbx_get_port_name) -
5219 sizeof(struct lpfc_sli4_cfg_mhdr),
5220 LPFC_SLI4_MBX_EMBED);
5221 get_port_name = &mboxq->u.mqe.un.get_port_name;
5222 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
5223 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
5224 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
5225 phba->sli4_hba.lnk_info.lnk_tp);
5226 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5227 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5228 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5229 if (shdr_status || shdr_add_status || rc) {
5230 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5231 "3087 Mailbox x%x (x%x/x%x) failed: "
5232 "rc:x%x, status:x%x, add_status:x%x\n",
5233 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5234 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5235 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5236 rc, shdr_status, shdr_add_status);
5237 rc = -ENXIO;
5238 goto out_free_mboxq;
5240 switch (phba->sli4_hba.lnk_info.lnk_no) {
5241 case LPFC_LINK_NUMBER_0:
5242 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
5243 &get_port_name->u.response);
5244 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5245 break;
5246 case LPFC_LINK_NUMBER_1:
5247 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
5248 &get_port_name->u.response);
5249 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5250 break;
5251 case LPFC_LINK_NUMBER_2:
5252 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
5253 &get_port_name->u.response);
5254 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5255 break;
5256 case LPFC_LINK_NUMBER_3:
5257 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
5258 &get_port_name->u.response);
5259 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5260 break;
5261 default:
5262 break;
5265 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
5266 phba->Port[0] = cport_name;
5267 phba->Port[1] = '\0';
5268 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5269 "3091 SLI get port name: %s\n", phba->Port);
5272 out_free_mboxq:
5273 if (rc != MBX_TIMEOUT) {
5274 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5275 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5276 else
5277 mempool_free(mboxq, phba->mbox_mem_pool);
5279 return rc;
5283 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
5284 * @phba: pointer to lpfc hba data structure.
5286 * This routine is called to explicitly arm the SLI4 device's completion and
5287 * event queues
5289 static void
5290 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
5292 int qidx;
5294 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
5295 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
5296 if (phba->sli4_hba.nvmels_cq)
5297 lpfc_sli4_cq_release(phba->sli4_hba.nvmels_cq,
5298 LPFC_QUEUE_REARM);
5300 if (phba->sli4_hba.fcp_cq)
5301 for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++)
5302 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[qidx],
5303 LPFC_QUEUE_REARM);
5305 if (phba->sli4_hba.nvme_cq)
5306 for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++)
5307 lpfc_sli4_cq_release(phba->sli4_hba.nvme_cq[qidx],
5308 LPFC_QUEUE_REARM);
5310 if (phba->cfg_fof)
5311 lpfc_sli4_cq_release(phba->sli4_hba.oas_cq, LPFC_QUEUE_REARM);
5313 if (phba->sli4_hba.hba_eq)
5314 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++)
5315 lpfc_sli4_eq_release(phba->sli4_hba.hba_eq[qidx],
5316 LPFC_QUEUE_REARM);
5318 if (phba->nvmet_support) {
5319 for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) {
5320 lpfc_sli4_cq_release(
5321 phba->sli4_hba.nvmet_cqset[qidx],
5322 LPFC_QUEUE_REARM);
5326 if (phba->cfg_fof)
5327 lpfc_sli4_eq_release(phba->sli4_hba.fof_eq, LPFC_QUEUE_REARM);
5331 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
5332 * @phba: Pointer to HBA context object.
5333 * @type: The resource extent type.
5334 * @extnt_count: buffer to hold port available extent count.
5335 * @extnt_size: buffer to hold element count per extent.
5337 * This function calls the port and retrievs the number of available
5338 * extents and their size for a particular extent type.
5340 * Returns: 0 if successful. Nonzero otherwise.
5343 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
5344 uint16_t *extnt_count, uint16_t *extnt_size)
5346 int rc = 0;
5347 uint32_t length;
5348 uint32_t mbox_tmo;
5349 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5350 LPFC_MBOXQ_t *mbox;
5352 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5353 if (!mbox)
5354 return -ENOMEM;
5356 /* Find out how many extents are available for this resource type */
5357 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5358 sizeof(struct lpfc_sli4_cfg_mhdr));
5359 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5360 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5361 length, LPFC_SLI4_MBX_EMBED);
5363 /* Send an extents count of 0 - the GET doesn't use it. */
5364 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5365 LPFC_SLI4_MBX_EMBED);
5366 if (unlikely(rc)) {
5367 rc = -EIO;
5368 goto err_exit;
5371 if (!phba->sli4_hba.intr_enable)
5372 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5373 else {
5374 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5375 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5377 if (unlikely(rc)) {
5378 rc = -EIO;
5379 goto err_exit;
5382 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5383 if (bf_get(lpfc_mbox_hdr_status,
5384 &rsrc_info->header.cfg_shdr.response)) {
5385 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5386 "2930 Failed to get resource extents "
5387 "Status 0x%x Add'l Status 0x%x\n",
5388 bf_get(lpfc_mbox_hdr_status,
5389 &rsrc_info->header.cfg_shdr.response),
5390 bf_get(lpfc_mbox_hdr_add_status,
5391 &rsrc_info->header.cfg_shdr.response));
5392 rc = -EIO;
5393 goto err_exit;
5396 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5397 &rsrc_info->u.rsp);
5398 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5399 &rsrc_info->u.rsp);
5401 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5402 "3162 Retrieved extents type-%d from port: count:%d, "
5403 "size:%d\n", type, *extnt_count, *extnt_size);
5405 err_exit:
5406 mempool_free(mbox, phba->mbox_mem_pool);
5407 return rc;
5411 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5412 * @phba: Pointer to HBA context object.
5413 * @type: The extent type to check.
5415 * This function reads the current available extents from the port and checks
5416 * if the extent count or extent size has changed since the last access.
5417 * Callers use this routine post port reset to understand if there is a
5418 * extent reprovisioning requirement.
5420 * Returns:
5421 * -Error: error indicates problem.
5422 * 1: Extent count or size has changed.
5423 * 0: No changes.
5425 static int
5426 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5428 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5429 uint16_t size_diff, rsrc_ext_size;
5430 int rc = 0;
5431 struct lpfc_rsrc_blks *rsrc_entry;
5432 struct list_head *rsrc_blk_list = NULL;
5434 size_diff = 0;
5435 curr_ext_cnt = 0;
5436 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5437 &rsrc_ext_cnt,
5438 &rsrc_ext_size);
5439 if (unlikely(rc))
5440 return -EIO;
5442 switch (type) {
5443 case LPFC_RSC_TYPE_FCOE_RPI:
5444 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5445 break;
5446 case LPFC_RSC_TYPE_FCOE_VPI:
5447 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5448 break;
5449 case LPFC_RSC_TYPE_FCOE_XRI:
5450 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5451 break;
5452 case LPFC_RSC_TYPE_FCOE_VFI:
5453 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5454 break;
5455 default:
5456 break;
5459 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5460 curr_ext_cnt++;
5461 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5462 size_diff++;
5465 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5466 rc = 1;
5468 return rc;
5472 * lpfc_sli4_cfg_post_extnts -
5473 * @phba: Pointer to HBA context object.
5474 * @extnt_cnt - number of available extents.
5475 * @type - the extent type (rpi, xri, vfi, vpi).
5476 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5477 * @mbox - pointer to the caller's allocated mailbox structure.
5479 * This function executes the extents allocation request. It also
5480 * takes care of the amount of memory needed to allocate or get the
5481 * allocated extents. It is the caller's responsibility to evaluate
5482 * the response.
5484 * Returns:
5485 * -Error: Error value describes the condition found.
5486 * 0: if successful
5488 static int
5489 lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
5490 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5492 int rc = 0;
5493 uint32_t req_len;
5494 uint32_t emb_len;
5495 uint32_t alloc_len, mbox_tmo;
5497 /* Calculate the total requested length of the dma memory */
5498 req_len = extnt_cnt * sizeof(uint16_t);
5501 * Calculate the size of an embedded mailbox. The uint32_t
5502 * accounts for extents-specific word.
5504 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5505 sizeof(uint32_t);
5508 * Presume the allocation and response will fit into an embedded
5509 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5511 *emb = LPFC_SLI4_MBX_EMBED;
5512 if (req_len > emb_len) {
5513 req_len = extnt_cnt * sizeof(uint16_t) +
5514 sizeof(union lpfc_sli4_cfg_shdr) +
5515 sizeof(uint32_t);
5516 *emb = LPFC_SLI4_MBX_NEMBED;
5519 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5520 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5521 req_len, *emb);
5522 if (alloc_len < req_len) {
5523 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5524 "2982 Allocated DMA memory size (x%x) is "
5525 "less than the requested DMA memory "
5526 "size (x%x)\n", alloc_len, req_len);
5527 return -ENOMEM;
5529 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
5530 if (unlikely(rc))
5531 return -EIO;
5533 if (!phba->sli4_hba.intr_enable)
5534 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5535 else {
5536 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5537 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5540 if (unlikely(rc))
5541 rc = -EIO;
5542 return rc;
5546 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5547 * @phba: Pointer to HBA context object.
5548 * @type: The resource extent type to allocate.
5550 * This function allocates the number of elements for the specified
5551 * resource type.
5553 static int
5554 lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5556 bool emb = false;
5557 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5558 uint16_t rsrc_id, rsrc_start, j, k;
5559 uint16_t *ids;
5560 int i, rc;
5561 unsigned long longs;
5562 unsigned long *bmask;
5563 struct lpfc_rsrc_blks *rsrc_blks;
5564 LPFC_MBOXQ_t *mbox;
5565 uint32_t length;
5566 struct lpfc_id_range *id_array = NULL;
5567 void *virtaddr = NULL;
5568 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5569 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5570 struct list_head *ext_blk_list;
5572 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5573 &rsrc_cnt,
5574 &rsrc_size);
5575 if (unlikely(rc))
5576 return -EIO;
5578 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5579 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5580 "3009 No available Resource Extents "
5581 "for resource type 0x%x: Count: 0x%x, "
5582 "Size 0x%x\n", type, rsrc_cnt,
5583 rsrc_size);
5584 return -ENOMEM;
5587 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5588 "2903 Post resource extents type-0x%x: "
5589 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
5591 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5592 if (!mbox)
5593 return -ENOMEM;
5595 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
5596 if (unlikely(rc)) {
5597 rc = -EIO;
5598 goto err_exit;
5602 * Figure out where the response is located. Then get local pointers
5603 * to the response data. The port does not guarantee to respond to
5604 * all extents counts request so update the local variable with the
5605 * allocated count from the port.
5607 if (emb == LPFC_SLI4_MBX_EMBED) {
5608 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5609 id_array = &rsrc_ext->u.rsp.id[0];
5610 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5611 } else {
5612 virtaddr = mbox->sge_array->addr[0];
5613 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5614 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5615 id_array = &n_rsrc->id;
5618 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5619 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5622 * Based on the resource size and count, correct the base and max
5623 * resource values.
5625 length = sizeof(struct lpfc_rsrc_blks);
5626 switch (type) {
5627 case LPFC_RSC_TYPE_FCOE_RPI:
5628 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5629 sizeof(unsigned long),
5630 GFP_KERNEL);
5631 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5632 rc = -ENOMEM;
5633 goto err_exit;
5635 phba->sli4_hba.rpi_ids = kzalloc(rsrc_id_cnt *
5636 sizeof(uint16_t),
5637 GFP_KERNEL);
5638 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5639 kfree(phba->sli4_hba.rpi_bmask);
5640 rc = -ENOMEM;
5641 goto err_exit;
5645 * The next_rpi was initialized with the maximum available
5646 * count but the port may allocate a smaller number. Catch
5647 * that case and update the next_rpi.
5649 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5651 /* Initialize local ptrs for common extent processing later. */
5652 bmask = phba->sli4_hba.rpi_bmask;
5653 ids = phba->sli4_hba.rpi_ids;
5654 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5655 break;
5656 case LPFC_RSC_TYPE_FCOE_VPI:
5657 phba->vpi_bmask = kzalloc(longs *
5658 sizeof(unsigned long),
5659 GFP_KERNEL);
5660 if (unlikely(!phba->vpi_bmask)) {
5661 rc = -ENOMEM;
5662 goto err_exit;
5664 phba->vpi_ids = kzalloc(rsrc_id_cnt *
5665 sizeof(uint16_t),
5666 GFP_KERNEL);
5667 if (unlikely(!phba->vpi_ids)) {
5668 kfree(phba->vpi_bmask);
5669 rc = -ENOMEM;
5670 goto err_exit;
5673 /* Initialize local ptrs for common extent processing later. */
5674 bmask = phba->vpi_bmask;
5675 ids = phba->vpi_ids;
5676 ext_blk_list = &phba->lpfc_vpi_blk_list;
5677 break;
5678 case LPFC_RSC_TYPE_FCOE_XRI:
5679 phba->sli4_hba.xri_bmask = kzalloc(longs *
5680 sizeof(unsigned long),
5681 GFP_KERNEL);
5682 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5683 rc = -ENOMEM;
5684 goto err_exit;
5686 phba->sli4_hba.max_cfg_param.xri_used = 0;
5687 phba->sli4_hba.xri_ids = kzalloc(rsrc_id_cnt *
5688 sizeof(uint16_t),
5689 GFP_KERNEL);
5690 if (unlikely(!phba->sli4_hba.xri_ids)) {
5691 kfree(phba->sli4_hba.xri_bmask);
5692 rc = -ENOMEM;
5693 goto err_exit;
5696 /* Initialize local ptrs for common extent processing later. */
5697 bmask = phba->sli4_hba.xri_bmask;
5698 ids = phba->sli4_hba.xri_ids;
5699 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5700 break;
5701 case LPFC_RSC_TYPE_FCOE_VFI:
5702 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5703 sizeof(unsigned long),
5704 GFP_KERNEL);
5705 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5706 rc = -ENOMEM;
5707 goto err_exit;
5709 phba->sli4_hba.vfi_ids = kzalloc(rsrc_id_cnt *
5710 sizeof(uint16_t),
5711 GFP_KERNEL);
5712 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5713 kfree(phba->sli4_hba.vfi_bmask);
5714 rc = -ENOMEM;
5715 goto err_exit;
5718 /* Initialize local ptrs for common extent processing later. */
5719 bmask = phba->sli4_hba.vfi_bmask;
5720 ids = phba->sli4_hba.vfi_ids;
5721 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5722 break;
5723 default:
5724 /* Unsupported Opcode. Fail call. */
5725 id_array = NULL;
5726 bmask = NULL;
5727 ids = NULL;
5728 ext_blk_list = NULL;
5729 goto err_exit;
5733 * Complete initializing the extent configuration with the
5734 * allocated ids assigned to this function. The bitmask serves
5735 * as an index into the array and manages the available ids. The
5736 * array just stores the ids communicated to the port via the wqes.
5738 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5739 if ((i % 2) == 0)
5740 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5741 &id_array[k]);
5742 else
5743 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5744 &id_array[k]);
5746 rsrc_blks = kzalloc(length, GFP_KERNEL);
5747 if (unlikely(!rsrc_blks)) {
5748 rc = -ENOMEM;
5749 kfree(bmask);
5750 kfree(ids);
5751 goto err_exit;
5753 rsrc_blks->rsrc_start = rsrc_id;
5754 rsrc_blks->rsrc_size = rsrc_size;
5755 list_add_tail(&rsrc_blks->list, ext_blk_list);
5756 rsrc_start = rsrc_id;
5757 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0)) {
5758 phba->sli4_hba.scsi_xri_start = rsrc_start +
5759 lpfc_sli4_get_iocb_cnt(phba);
5760 phba->sli4_hba.nvme_xri_start =
5761 phba->sli4_hba.scsi_xri_start +
5762 phba->sli4_hba.scsi_xri_max;
5765 while (rsrc_id < (rsrc_start + rsrc_size)) {
5766 ids[j] = rsrc_id;
5767 rsrc_id++;
5768 j++;
5770 /* Entire word processed. Get next word.*/
5771 if ((i % 2) == 1)
5772 k++;
5774 err_exit:
5775 lpfc_sli4_mbox_cmd_free(phba, mbox);
5776 return rc;
5782 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5783 * @phba: Pointer to HBA context object.
5784 * @type: the extent's type.
5786 * This function deallocates all extents of a particular resource type.
5787 * SLI4 does not allow for deallocating a particular extent range. It
5788 * is the caller's responsibility to release all kernel memory resources.
5790 static int
5791 lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
5793 int rc;
5794 uint32_t length, mbox_tmo = 0;
5795 LPFC_MBOXQ_t *mbox;
5796 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
5797 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
5799 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5800 if (!mbox)
5801 return -ENOMEM;
5804 * This function sends an embedded mailbox because it only sends the
5805 * the resource type. All extents of this type are released by the
5806 * port.
5808 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
5809 sizeof(struct lpfc_sli4_cfg_mhdr));
5810 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5811 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
5812 length, LPFC_SLI4_MBX_EMBED);
5814 /* Send an extents count of 0 - the dealloc doesn't use it. */
5815 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5816 LPFC_SLI4_MBX_EMBED);
5817 if (unlikely(rc)) {
5818 rc = -EIO;
5819 goto out_free_mbox;
5821 if (!phba->sli4_hba.intr_enable)
5822 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5823 else {
5824 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
5825 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5827 if (unlikely(rc)) {
5828 rc = -EIO;
5829 goto out_free_mbox;
5832 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
5833 if (bf_get(lpfc_mbox_hdr_status,
5834 &dealloc_rsrc->header.cfg_shdr.response)) {
5835 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5836 "2919 Failed to release resource extents "
5837 "for type %d - Status 0x%x Add'l Status 0x%x. "
5838 "Resource memory not released.\n",
5839 type,
5840 bf_get(lpfc_mbox_hdr_status,
5841 &dealloc_rsrc->header.cfg_shdr.response),
5842 bf_get(lpfc_mbox_hdr_add_status,
5843 &dealloc_rsrc->header.cfg_shdr.response));
5844 rc = -EIO;
5845 goto out_free_mbox;
5848 /* Release kernel memory resources for the specific type. */
5849 switch (type) {
5850 case LPFC_RSC_TYPE_FCOE_VPI:
5851 kfree(phba->vpi_bmask);
5852 kfree(phba->vpi_ids);
5853 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5854 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5855 &phba->lpfc_vpi_blk_list, list) {
5856 list_del_init(&rsrc_blk->list);
5857 kfree(rsrc_blk);
5859 phba->sli4_hba.max_cfg_param.vpi_used = 0;
5860 break;
5861 case LPFC_RSC_TYPE_FCOE_XRI:
5862 kfree(phba->sli4_hba.xri_bmask);
5863 kfree(phba->sli4_hba.xri_ids);
5864 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5865 &phba->sli4_hba.lpfc_xri_blk_list, list) {
5866 list_del_init(&rsrc_blk->list);
5867 kfree(rsrc_blk);
5869 break;
5870 case LPFC_RSC_TYPE_FCOE_VFI:
5871 kfree(phba->sli4_hba.vfi_bmask);
5872 kfree(phba->sli4_hba.vfi_ids);
5873 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5874 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5875 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
5876 list_del_init(&rsrc_blk->list);
5877 kfree(rsrc_blk);
5879 break;
5880 case LPFC_RSC_TYPE_FCOE_RPI:
5881 /* RPI bitmask and physical id array are cleaned up earlier. */
5882 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5883 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
5884 list_del_init(&rsrc_blk->list);
5885 kfree(rsrc_blk);
5887 break;
5888 default:
5889 break;
5892 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5894 out_free_mbox:
5895 mempool_free(mbox, phba->mbox_mem_pool);
5896 return rc;
5899 static void
5900 lpfc_set_features(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox,
5901 uint32_t feature)
5903 uint32_t len;
5905 len = sizeof(struct lpfc_mbx_set_feature) -
5906 sizeof(struct lpfc_sli4_cfg_mhdr);
5907 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5908 LPFC_MBOX_OPCODE_SET_FEATURES, len,
5909 LPFC_SLI4_MBX_EMBED);
5911 switch (feature) {
5912 case LPFC_SET_UE_RECOVERY:
5913 bf_set(lpfc_mbx_set_feature_UER,
5914 &mbox->u.mqe.un.set_feature, 1);
5915 mbox->u.mqe.un.set_feature.feature = LPFC_SET_UE_RECOVERY;
5916 mbox->u.mqe.un.set_feature.param_len = 8;
5917 break;
5918 case LPFC_SET_MDS_DIAGS:
5919 bf_set(lpfc_mbx_set_feature_mds,
5920 &mbox->u.mqe.un.set_feature, 1);
5921 bf_set(lpfc_mbx_set_feature_mds_deep_loopbk,
5922 &mbox->u.mqe.un.set_feature, 1);
5923 mbox->u.mqe.un.set_feature.feature = LPFC_SET_MDS_DIAGS;
5924 mbox->u.mqe.un.set_feature.param_len = 8;
5925 break;
5928 return;
5932 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5933 * @phba: Pointer to HBA context object.
5935 * This function allocates all SLI4 resource identifiers.
5938 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
5940 int i, rc, error = 0;
5941 uint16_t count, base;
5942 unsigned long longs;
5944 if (!phba->sli4_hba.rpi_hdrs_in_use)
5945 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
5946 if (phba->sli4_hba.extents_in_use) {
5948 * The port supports resource extents. The XRI, VPI, VFI, RPI
5949 * resource extent count must be read and allocated before
5950 * provisioning the resource id arrays.
5952 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5953 LPFC_IDX_RSRC_RDY) {
5955 * Extent-based resources are set - the driver could
5956 * be in a port reset. Figure out if any corrective
5957 * actions need to be taken.
5959 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5960 LPFC_RSC_TYPE_FCOE_VFI);
5961 if (rc != 0)
5962 error++;
5963 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5964 LPFC_RSC_TYPE_FCOE_VPI);
5965 if (rc != 0)
5966 error++;
5967 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5968 LPFC_RSC_TYPE_FCOE_XRI);
5969 if (rc != 0)
5970 error++;
5971 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5972 LPFC_RSC_TYPE_FCOE_RPI);
5973 if (rc != 0)
5974 error++;
5977 * It's possible that the number of resources
5978 * provided to this port instance changed between
5979 * resets. Detect this condition and reallocate
5980 * resources. Otherwise, there is no action.
5982 if (error) {
5983 lpfc_printf_log(phba, KERN_INFO,
5984 LOG_MBOX | LOG_INIT,
5985 "2931 Detected extent resource "
5986 "change. Reallocating all "
5987 "extents.\n");
5988 rc = lpfc_sli4_dealloc_extent(phba,
5989 LPFC_RSC_TYPE_FCOE_VFI);
5990 rc = lpfc_sli4_dealloc_extent(phba,
5991 LPFC_RSC_TYPE_FCOE_VPI);
5992 rc = lpfc_sli4_dealloc_extent(phba,
5993 LPFC_RSC_TYPE_FCOE_XRI);
5994 rc = lpfc_sli4_dealloc_extent(phba,
5995 LPFC_RSC_TYPE_FCOE_RPI);
5996 } else
5997 return 0;
6000 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6001 if (unlikely(rc))
6002 goto err_exit;
6004 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6005 if (unlikely(rc))
6006 goto err_exit;
6008 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6009 if (unlikely(rc))
6010 goto err_exit;
6012 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6013 if (unlikely(rc))
6014 goto err_exit;
6015 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6016 LPFC_IDX_RSRC_RDY);
6017 return rc;
6018 } else {
6020 * The port does not support resource extents. The XRI, VPI,
6021 * VFI, RPI resource ids were determined from READ_CONFIG.
6022 * Just allocate the bitmasks and provision the resource id
6023 * arrays. If a port reset is active, the resources don't
6024 * need any action - just exit.
6026 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
6027 LPFC_IDX_RSRC_RDY) {
6028 lpfc_sli4_dealloc_resource_identifiers(phba);
6029 lpfc_sli4_remove_rpis(phba);
6031 /* RPIs. */
6032 count = phba->sli4_hba.max_cfg_param.max_rpi;
6033 if (count <= 0) {
6034 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6035 "3279 Invalid provisioning of "
6036 "rpi:%d\n", count);
6037 rc = -EINVAL;
6038 goto err_exit;
6040 base = phba->sli4_hba.max_cfg_param.rpi_base;
6041 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6042 phba->sli4_hba.rpi_bmask = kzalloc(longs *
6043 sizeof(unsigned long),
6044 GFP_KERNEL);
6045 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
6046 rc = -ENOMEM;
6047 goto err_exit;
6049 phba->sli4_hba.rpi_ids = kzalloc(count *
6050 sizeof(uint16_t),
6051 GFP_KERNEL);
6052 if (unlikely(!phba->sli4_hba.rpi_ids)) {
6053 rc = -ENOMEM;
6054 goto free_rpi_bmask;
6057 for (i = 0; i < count; i++)
6058 phba->sli4_hba.rpi_ids[i] = base + i;
6060 /* VPIs. */
6061 count = phba->sli4_hba.max_cfg_param.max_vpi;
6062 if (count <= 0) {
6063 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6064 "3280 Invalid provisioning of "
6065 "vpi:%d\n", count);
6066 rc = -EINVAL;
6067 goto free_rpi_ids;
6069 base = phba->sli4_hba.max_cfg_param.vpi_base;
6070 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6071 phba->vpi_bmask = kzalloc(longs *
6072 sizeof(unsigned long),
6073 GFP_KERNEL);
6074 if (unlikely(!phba->vpi_bmask)) {
6075 rc = -ENOMEM;
6076 goto free_rpi_ids;
6078 phba->vpi_ids = kzalloc(count *
6079 sizeof(uint16_t),
6080 GFP_KERNEL);
6081 if (unlikely(!phba->vpi_ids)) {
6082 rc = -ENOMEM;
6083 goto free_vpi_bmask;
6086 for (i = 0; i < count; i++)
6087 phba->vpi_ids[i] = base + i;
6089 /* XRIs. */
6090 count = phba->sli4_hba.max_cfg_param.max_xri;
6091 if (count <= 0) {
6092 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6093 "3281 Invalid provisioning of "
6094 "xri:%d\n", count);
6095 rc = -EINVAL;
6096 goto free_vpi_ids;
6098 base = phba->sli4_hba.max_cfg_param.xri_base;
6099 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6100 phba->sli4_hba.xri_bmask = kzalloc(longs *
6101 sizeof(unsigned long),
6102 GFP_KERNEL);
6103 if (unlikely(!phba->sli4_hba.xri_bmask)) {
6104 rc = -ENOMEM;
6105 goto free_vpi_ids;
6107 phba->sli4_hba.max_cfg_param.xri_used = 0;
6108 phba->sli4_hba.xri_ids = kzalloc(count *
6109 sizeof(uint16_t),
6110 GFP_KERNEL);
6111 if (unlikely(!phba->sli4_hba.xri_ids)) {
6112 rc = -ENOMEM;
6113 goto free_xri_bmask;
6116 for (i = 0; i < count; i++)
6117 phba->sli4_hba.xri_ids[i] = base + i;
6119 /* VFIs. */
6120 count = phba->sli4_hba.max_cfg_param.max_vfi;
6121 if (count <= 0) {
6122 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6123 "3282 Invalid provisioning of "
6124 "vfi:%d\n", count);
6125 rc = -EINVAL;
6126 goto free_xri_ids;
6128 base = phba->sli4_hba.max_cfg_param.vfi_base;
6129 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
6130 phba->sli4_hba.vfi_bmask = kzalloc(longs *
6131 sizeof(unsigned long),
6132 GFP_KERNEL);
6133 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
6134 rc = -ENOMEM;
6135 goto free_xri_ids;
6137 phba->sli4_hba.vfi_ids = kzalloc(count *
6138 sizeof(uint16_t),
6139 GFP_KERNEL);
6140 if (unlikely(!phba->sli4_hba.vfi_ids)) {
6141 rc = -ENOMEM;
6142 goto free_vfi_bmask;
6145 for (i = 0; i < count; i++)
6146 phba->sli4_hba.vfi_ids[i] = base + i;
6149 * Mark all resources ready. An HBA reset doesn't need
6150 * to reset the initialization.
6152 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
6153 LPFC_IDX_RSRC_RDY);
6154 return 0;
6157 free_vfi_bmask:
6158 kfree(phba->sli4_hba.vfi_bmask);
6159 phba->sli4_hba.vfi_bmask = NULL;
6160 free_xri_ids:
6161 kfree(phba->sli4_hba.xri_ids);
6162 phba->sli4_hba.xri_ids = NULL;
6163 free_xri_bmask:
6164 kfree(phba->sli4_hba.xri_bmask);
6165 phba->sli4_hba.xri_bmask = NULL;
6166 free_vpi_ids:
6167 kfree(phba->vpi_ids);
6168 phba->vpi_ids = NULL;
6169 free_vpi_bmask:
6170 kfree(phba->vpi_bmask);
6171 phba->vpi_bmask = NULL;
6172 free_rpi_ids:
6173 kfree(phba->sli4_hba.rpi_ids);
6174 phba->sli4_hba.rpi_ids = NULL;
6175 free_rpi_bmask:
6176 kfree(phba->sli4_hba.rpi_bmask);
6177 phba->sli4_hba.rpi_bmask = NULL;
6178 err_exit:
6179 return rc;
6183 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
6184 * @phba: Pointer to HBA context object.
6186 * This function allocates the number of elements for the specified
6187 * resource type.
6190 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
6192 if (phba->sli4_hba.extents_in_use) {
6193 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
6194 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
6195 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
6196 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
6197 } else {
6198 kfree(phba->vpi_bmask);
6199 phba->sli4_hba.max_cfg_param.vpi_used = 0;
6200 kfree(phba->vpi_ids);
6201 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6202 kfree(phba->sli4_hba.xri_bmask);
6203 kfree(phba->sli4_hba.xri_ids);
6204 kfree(phba->sli4_hba.vfi_bmask);
6205 kfree(phba->sli4_hba.vfi_ids);
6206 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6207 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
6210 return 0;
6214 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
6215 * @phba: Pointer to HBA context object.
6216 * @type: The resource extent type.
6217 * @extnt_count: buffer to hold port extent count response
6218 * @extnt_size: buffer to hold port extent size response.
6220 * This function calls the port to read the host allocated extents
6221 * for a particular type.
6224 lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
6225 uint16_t *extnt_cnt, uint16_t *extnt_size)
6227 bool emb;
6228 int rc = 0;
6229 uint16_t curr_blks = 0;
6230 uint32_t req_len, emb_len;
6231 uint32_t alloc_len, mbox_tmo;
6232 struct list_head *blk_list_head;
6233 struct lpfc_rsrc_blks *rsrc_blk;
6234 LPFC_MBOXQ_t *mbox;
6235 void *virtaddr = NULL;
6236 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
6237 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
6238 union lpfc_sli4_cfg_shdr *shdr;
6240 switch (type) {
6241 case LPFC_RSC_TYPE_FCOE_VPI:
6242 blk_list_head = &phba->lpfc_vpi_blk_list;
6243 break;
6244 case LPFC_RSC_TYPE_FCOE_XRI:
6245 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
6246 break;
6247 case LPFC_RSC_TYPE_FCOE_VFI:
6248 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
6249 break;
6250 case LPFC_RSC_TYPE_FCOE_RPI:
6251 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
6252 break;
6253 default:
6254 return -EIO;
6257 /* Count the number of extents currently allocatd for this type. */
6258 list_for_each_entry(rsrc_blk, blk_list_head, list) {
6259 if (curr_blks == 0) {
6261 * The GET_ALLOCATED mailbox does not return the size,
6262 * just the count. The size should be just the size
6263 * stored in the current allocated block and all sizes
6264 * for an extent type are the same so set the return
6265 * value now.
6267 *extnt_size = rsrc_blk->rsrc_size;
6269 curr_blks++;
6273 * Calculate the size of an embedded mailbox. The uint32_t
6274 * accounts for extents-specific word.
6276 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
6277 sizeof(uint32_t);
6280 * Presume the allocation and response will fit into an embedded
6281 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6283 emb = LPFC_SLI4_MBX_EMBED;
6284 req_len = emb_len;
6285 if (req_len > emb_len) {
6286 req_len = curr_blks * sizeof(uint16_t) +
6287 sizeof(union lpfc_sli4_cfg_shdr) +
6288 sizeof(uint32_t);
6289 emb = LPFC_SLI4_MBX_NEMBED;
6292 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6293 if (!mbox)
6294 return -ENOMEM;
6295 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
6297 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6298 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
6299 req_len, emb);
6300 if (alloc_len < req_len) {
6301 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6302 "2983 Allocated DMA memory size (x%x) is "
6303 "less than the requested DMA memory "
6304 "size (x%x)\n", alloc_len, req_len);
6305 rc = -ENOMEM;
6306 goto err_exit;
6308 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
6309 if (unlikely(rc)) {
6310 rc = -EIO;
6311 goto err_exit;
6314 if (!phba->sli4_hba.intr_enable)
6315 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6316 else {
6317 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
6318 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6321 if (unlikely(rc)) {
6322 rc = -EIO;
6323 goto err_exit;
6327 * Figure out where the response is located. Then get local pointers
6328 * to the response data. The port does not guarantee to respond to
6329 * all extents counts request so update the local variable with the
6330 * allocated count from the port.
6332 if (emb == LPFC_SLI4_MBX_EMBED) {
6333 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
6334 shdr = &rsrc_ext->header.cfg_shdr;
6335 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
6336 } else {
6337 virtaddr = mbox->sge_array->addr[0];
6338 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
6339 shdr = &n_rsrc->cfg_shdr;
6340 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
6343 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
6344 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6345 "2984 Failed to read allocated resources "
6346 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
6347 type,
6348 bf_get(lpfc_mbox_hdr_status, &shdr->response),
6349 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
6350 rc = -EIO;
6351 goto err_exit;
6353 err_exit:
6354 lpfc_sli4_mbox_cmd_free(phba, mbox);
6355 return rc;
6359 * lpfc_sli4_repost_sgl_list - Repost the buffers sgl pages as block
6360 * @phba: pointer to lpfc hba data structure.
6361 * @pring: Pointer to driver SLI ring object.
6362 * @sgl_list: linked link of sgl buffers to post
6363 * @cnt: number of linked list buffers
6365 * This routine walks the list of buffers that have been allocated and
6366 * repost them to the port by using SGL block post. This is needed after a
6367 * pci_function_reset/warm_start or start. It attempts to construct blocks
6368 * of buffer sgls which contains contiguous xris and uses the non-embedded
6369 * SGL block post mailbox commands to post them to the port. For single
6370 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
6371 * mailbox command for posting.
6373 * Returns: 0 = success, non-zero failure.
6375 static int
6376 lpfc_sli4_repost_sgl_list(struct lpfc_hba *phba,
6377 struct list_head *sgl_list, int cnt)
6379 struct lpfc_sglq *sglq_entry = NULL;
6380 struct lpfc_sglq *sglq_entry_next = NULL;
6381 struct lpfc_sglq *sglq_entry_first = NULL;
6382 int status, total_cnt;
6383 int post_cnt = 0, num_posted = 0, block_cnt = 0;
6384 int last_xritag = NO_XRI;
6385 LIST_HEAD(prep_sgl_list);
6386 LIST_HEAD(blck_sgl_list);
6387 LIST_HEAD(allc_sgl_list);
6388 LIST_HEAD(post_sgl_list);
6389 LIST_HEAD(free_sgl_list);
6391 spin_lock_irq(&phba->hbalock);
6392 spin_lock(&phba->sli4_hba.sgl_list_lock);
6393 list_splice_init(sgl_list, &allc_sgl_list);
6394 spin_unlock(&phba->sli4_hba.sgl_list_lock);
6395 spin_unlock_irq(&phba->hbalock);
6397 total_cnt = cnt;
6398 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6399 &allc_sgl_list, list) {
6400 list_del_init(&sglq_entry->list);
6401 block_cnt++;
6402 if ((last_xritag != NO_XRI) &&
6403 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6404 /* a hole in xri block, form a sgl posting block */
6405 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6406 post_cnt = block_cnt - 1;
6407 /* prepare list for next posting block */
6408 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6409 block_cnt = 1;
6410 } else {
6411 /* prepare list for next posting block */
6412 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6413 /* enough sgls for non-embed sgl mbox command */
6414 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6415 list_splice_init(&prep_sgl_list,
6416 &blck_sgl_list);
6417 post_cnt = block_cnt;
6418 block_cnt = 0;
6421 num_posted++;
6423 /* keep track of last sgl's xritag */
6424 last_xritag = sglq_entry->sli4_xritag;
6426 /* end of repost sgl list condition for buffers */
6427 if (num_posted == total_cnt) {
6428 if (post_cnt == 0) {
6429 list_splice_init(&prep_sgl_list,
6430 &blck_sgl_list);
6431 post_cnt = block_cnt;
6432 } else if (block_cnt == 1) {
6433 status = lpfc_sli4_post_sgl(phba,
6434 sglq_entry->phys, 0,
6435 sglq_entry->sli4_xritag);
6436 if (!status) {
6437 /* successful, put sgl to posted list */
6438 list_add_tail(&sglq_entry->list,
6439 &post_sgl_list);
6440 } else {
6441 /* Failure, put sgl to free list */
6442 lpfc_printf_log(phba, KERN_WARNING,
6443 LOG_SLI,
6444 "3159 Failed to post "
6445 "sgl, xritag:x%x\n",
6446 sglq_entry->sli4_xritag);
6447 list_add_tail(&sglq_entry->list,
6448 &free_sgl_list);
6449 total_cnt--;
6454 /* continue until a nembed page worth of sgls */
6455 if (post_cnt == 0)
6456 continue;
6458 /* post the buffer list sgls as a block */
6459 status = lpfc_sli4_post_sgl_list(phba, &blck_sgl_list,
6460 post_cnt);
6462 if (!status) {
6463 /* success, put sgl list to posted sgl list */
6464 list_splice_init(&blck_sgl_list, &post_sgl_list);
6465 } else {
6466 /* Failure, put sgl list to free sgl list */
6467 sglq_entry_first = list_first_entry(&blck_sgl_list,
6468 struct lpfc_sglq,
6469 list);
6470 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6471 "3160 Failed to post sgl-list, "
6472 "xritag:x%x-x%x\n",
6473 sglq_entry_first->sli4_xritag,
6474 (sglq_entry_first->sli4_xritag +
6475 post_cnt - 1));
6476 list_splice_init(&blck_sgl_list, &free_sgl_list);
6477 total_cnt -= post_cnt;
6480 /* don't reset xirtag due to hole in xri block */
6481 if (block_cnt == 0)
6482 last_xritag = NO_XRI;
6484 /* reset sgl post count for next round of posting */
6485 post_cnt = 0;
6488 /* free the sgls failed to post */
6489 lpfc_free_sgl_list(phba, &free_sgl_list);
6491 /* push sgls posted to the available list */
6492 if (!list_empty(&post_sgl_list)) {
6493 spin_lock_irq(&phba->hbalock);
6494 spin_lock(&phba->sli4_hba.sgl_list_lock);
6495 list_splice_init(&post_sgl_list, sgl_list);
6496 spin_unlock(&phba->sli4_hba.sgl_list_lock);
6497 spin_unlock_irq(&phba->hbalock);
6498 } else {
6499 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6500 "3161 Failure to post sgl to port.\n");
6501 return -EIO;
6504 /* return the number of XRIs actually posted */
6505 return total_cnt;
6508 void
6509 lpfc_set_host_data(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
6511 uint32_t len;
6513 len = sizeof(struct lpfc_mbx_set_host_data) -
6514 sizeof(struct lpfc_sli4_cfg_mhdr);
6515 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6516 LPFC_MBOX_OPCODE_SET_HOST_DATA, len,
6517 LPFC_SLI4_MBX_EMBED);
6519 mbox->u.mqe.un.set_host_data.param_id = LPFC_SET_HOST_OS_DRIVER_VERSION;
6520 mbox->u.mqe.un.set_host_data.param_len =
6521 LPFC_HOST_OS_DRIVER_VERSION_SIZE;
6522 snprintf(mbox->u.mqe.un.set_host_data.data,
6523 LPFC_HOST_OS_DRIVER_VERSION_SIZE,
6524 "Linux %s v"LPFC_DRIVER_VERSION,
6525 (phba->hba_flag & HBA_FCOE_MODE) ? "FCoE" : "FC");
6529 lpfc_post_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *hrq,
6530 struct lpfc_queue *drq, int count, int idx)
6532 int rc, i;
6533 struct lpfc_rqe hrqe;
6534 struct lpfc_rqe drqe;
6535 struct lpfc_rqb *rqbp;
6536 struct rqb_dmabuf *rqb_buffer;
6537 LIST_HEAD(rqb_buf_list);
6539 rqbp = hrq->rqbp;
6540 for (i = 0; i < count; i++) {
6541 /* IF RQ is already full, don't bother */
6542 if (rqbp->buffer_count + i >= rqbp->entry_count - 1)
6543 break;
6544 rqb_buffer = rqbp->rqb_alloc_buffer(phba);
6545 if (!rqb_buffer)
6546 break;
6547 rqb_buffer->hrq = hrq;
6548 rqb_buffer->drq = drq;
6549 rqb_buffer->idx = idx;
6550 list_add_tail(&rqb_buffer->hbuf.list, &rqb_buf_list);
6552 while (!list_empty(&rqb_buf_list)) {
6553 list_remove_head(&rqb_buf_list, rqb_buffer, struct rqb_dmabuf,
6554 hbuf.list);
6556 hrqe.address_lo = putPaddrLow(rqb_buffer->hbuf.phys);
6557 hrqe.address_hi = putPaddrHigh(rqb_buffer->hbuf.phys);
6558 drqe.address_lo = putPaddrLow(rqb_buffer->dbuf.phys);
6559 drqe.address_hi = putPaddrHigh(rqb_buffer->dbuf.phys);
6560 rc = lpfc_sli4_rq_put(hrq, drq, &hrqe, &drqe);
6561 if (rc < 0) {
6562 rqbp->rqb_free_buffer(phba, rqb_buffer);
6563 } else {
6564 list_add_tail(&rqb_buffer->hbuf.list,
6565 &rqbp->rqb_buffer_list);
6566 rqbp->buffer_count++;
6569 return 1;
6573 * lpfc_sli4_hba_setup - SLI4 device initialization PCI function
6574 * @phba: Pointer to HBA context object.
6576 * This function is the main SLI4 device initialization PCI function. This
6577 * function is called by the HBA initialization code, HBA reset code and
6578 * HBA error attention handler code. Caller is not required to hold any
6579 * locks.
6582 lpfc_sli4_hba_setup(struct lpfc_hba *phba)
6584 int rc, i, cnt;
6585 LPFC_MBOXQ_t *mboxq;
6586 struct lpfc_mqe *mqe;
6587 uint8_t *vpd;
6588 uint32_t vpd_size;
6589 uint32_t ftr_rsp = 0;
6590 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
6591 struct lpfc_vport *vport = phba->pport;
6592 struct lpfc_dmabuf *mp;
6593 struct lpfc_rqb *rqbp;
6595 /* Perform a PCI function reset to start from clean */
6596 rc = lpfc_pci_function_reset(phba);
6597 if (unlikely(rc))
6598 return -ENODEV;
6600 /* Check the HBA Host Status Register for readyness */
6601 rc = lpfc_sli4_post_status_check(phba);
6602 if (unlikely(rc))
6603 return -ENODEV;
6604 else {
6605 spin_lock_irq(&phba->hbalock);
6606 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
6607 spin_unlock_irq(&phba->hbalock);
6611 * Allocate a single mailbox container for initializing the
6612 * port.
6614 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6615 if (!mboxq)
6616 return -ENOMEM;
6618 /* Issue READ_REV to collect vpd and FW information. */
6619 vpd_size = SLI4_PAGE_SIZE;
6620 vpd = kzalloc(vpd_size, GFP_KERNEL);
6621 if (!vpd) {
6622 rc = -ENOMEM;
6623 goto out_free_mbox;
6626 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
6627 if (unlikely(rc)) {
6628 kfree(vpd);
6629 goto out_free_mbox;
6632 mqe = &mboxq->u.mqe;
6633 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
6634 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev)) {
6635 phba->hba_flag |= HBA_FCOE_MODE;
6636 phba->fcp_embed_io = 0; /* SLI4 FC support only */
6637 } else {
6638 phba->hba_flag &= ~HBA_FCOE_MODE;
6641 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
6642 LPFC_DCBX_CEE_MODE)
6643 phba->hba_flag |= HBA_FIP_SUPPORT;
6644 else
6645 phba->hba_flag &= ~HBA_FIP_SUPPORT;
6647 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
6649 if (phba->sli_rev != LPFC_SLI_REV4) {
6650 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6651 "0376 READ_REV Error. SLI Level %d "
6652 "FCoE enabled %d\n",
6653 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
6654 rc = -EIO;
6655 kfree(vpd);
6656 goto out_free_mbox;
6660 * Continue initialization with default values even if driver failed
6661 * to read FCoE param config regions, only read parameters if the
6662 * board is FCoE
6664 if (phba->hba_flag & HBA_FCOE_MODE &&
6665 lpfc_sli4_read_fcoe_params(phba))
6666 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
6667 "2570 Failed to read FCoE parameters\n");
6670 * Retrieve sli4 device physical port name, failure of doing it
6671 * is considered as non-fatal.
6673 rc = lpfc_sli4_retrieve_pport_name(phba);
6674 if (!rc)
6675 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6676 "3080 Successful retrieving SLI4 device "
6677 "physical port name: %s.\n", phba->Port);
6680 * Evaluate the read rev and vpd data. Populate the driver
6681 * state with the results. If this routine fails, the failure
6682 * is not fatal as the driver will use generic values.
6684 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
6685 if (unlikely(!rc)) {
6686 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6687 "0377 Error %d parsing vpd. "
6688 "Using defaults.\n", rc);
6689 rc = 0;
6691 kfree(vpd);
6693 /* Save information as VPD data */
6694 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
6695 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
6696 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
6697 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
6698 &mqe->un.read_rev);
6699 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
6700 &mqe->un.read_rev);
6701 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
6702 &mqe->un.read_rev);
6703 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
6704 &mqe->un.read_rev);
6705 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
6706 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
6707 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
6708 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
6709 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
6710 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
6711 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6712 "(%d):0380 READ_REV Status x%x "
6713 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6714 mboxq->vport ? mboxq->vport->vpi : 0,
6715 bf_get(lpfc_mqe_status, mqe),
6716 phba->vpd.rev.opFwName,
6717 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
6718 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
6720 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
6721 rc = (phba->sli4_hba.max_cfg_param.max_xri >> 3);
6722 if (phba->pport->cfg_lun_queue_depth > rc) {
6723 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6724 "3362 LUN queue depth changed from %d to %d\n",
6725 phba->pport->cfg_lun_queue_depth, rc);
6726 phba->pport->cfg_lun_queue_depth = rc;
6729 if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
6730 LPFC_SLI_INTF_IF_TYPE_0) {
6731 lpfc_set_features(phba, mboxq, LPFC_SET_UE_RECOVERY);
6732 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6733 if (rc == MBX_SUCCESS) {
6734 phba->hba_flag |= HBA_RECOVERABLE_UE;
6735 /* Set 1Sec interval to detect UE */
6736 phba->eratt_poll_interval = 1;
6737 phba->sli4_hba.ue_to_sr = bf_get(
6738 lpfc_mbx_set_feature_UESR,
6739 &mboxq->u.mqe.un.set_feature);
6740 phba->sli4_hba.ue_to_rp = bf_get(
6741 lpfc_mbx_set_feature_UERP,
6742 &mboxq->u.mqe.un.set_feature);
6746 if (phba->cfg_enable_mds_diags && phba->mds_diags_support) {
6747 /* Enable MDS Diagnostics only if the SLI Port supports it */
6748 lpfc_set_features(phba, mboxq, LPFC_SET_MDS_DIAGS);
6749 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6750 if (rc != MBX_SUCCESS)
6751 phba->mds_diags_support = 0;
6755 * Discover the port's supported feature set and match it against the
6756 * hosts requests.
6758 lpfc_request_features(phba, mboxq);
6759 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6760 if (unlikely(rc)) {
6761 rc = -EIO;
6762 goto out_free_mbox;
6766 * The port must support FCP initiator mode as this is the
6767 * only mode running in the host.
6769 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
6770 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6771 "0378 No support for fcpi mode.\n");
6772 ftr_rsp++;
6774 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
6775 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
6776 else
6777 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
6779 * If the port cannot support the host's requested features
6780 * then turn off the global config parameters to disable the
6781 * feature in the driver. This is not a fatal error.
6783 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
6784 if (phba->cfg_enable_bg) {
6785 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))
6786 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
6787 else
6788 ftr_rsp++;
6791 if (phba->max_vpi && phba->cfg_enable_npiv &&
6792 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6793 ftr_rsp++;
6795 if (ftr_rsp) {
6796 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6797 "0379 Feature Mismatch Data: x%08x %08x "
6798 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
6799 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
6800 phba->cfg_enable_npiv, phba->max_vpi);
6801 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
6802 phba->cfg_enable_bg = 0;
6803 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6804 phba->cfg_enable_npiv = 0;
6807 /* These SLI3 features are assumed in SLI4 */
6808 spin_lock_irq(&phba->hbalock);
6809 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
6810 spin_unlock_irq(&phba->hbalock);
6813 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6814 * calls depends on these resources to complete port setup.
6816 rc = lpfc_sli4_alloc_resource_identifiers(phba);
6817 if (rc) {
6818 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6819 "2920 Failed to alloc Resource IDs "
6820 "rc = x%x\n", rc);
6821 goto out_free_mbox;
6824 lpfc_set_host_data(phba, mboxq);
6826 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6827 if (rc) {
6828 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6829 "2134 Failed to set host os driver version %x",
6830 rc);
6833 /* Read the port's service parameters. */
6834 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
6835 if (rc) {
6836 phba->link_state = LPFC_HBA_ERROR;
6837 rc = -ENOMEM;
6838 goto out_free_mbox;
6841 mboxq->vport = vport;
6842 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6843 mp = (struct lpfc_dmabuf *) mboxq->context1;
6844 if (rc == MBX_SUCCESS) {
6845 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
6846 rc = 0;
6850 * This memory was allocated by the lpfc_read_sparam routine. Release
6851 * it to the mbuf pool.
6853 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6854 kfree(mp);
6855 mboxq->context1 = NULL;
6856 if (unlikely(rc)) {
6857 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6858 "0382 READ_SPARAM command failed "
6859 "status %d, mbxStatus x%x\n",
6860 rc, bf_get(lpfc_mqe_status, mqe));
6861 phba->link_state = LPFC_HBA_ERROR;
6862 rc = -EIO;
6863 goto out_free_mbox;
6866 lpfc_update_vport_wwn(vport);
6868 /* Update the fc_host data structures with new wwn. */
6869 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
6870 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
6872 /* Create all the SLI4 queues */
6873 rc = lpfc_sli4_queue_create(phba);
6874 if (rc) {
6875 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6876 "3089 Failed to allocate queues\n");
6877 rc = -ENODEV;
6878 goto out_free_mbox;
6880 /* Set up all the queues to the device */
6881 rc = lpfc_sli4_queue_setup(phba);
6882 if (unlikely(rc)) {
6883 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6884 "0381 Error %d during queue setup.\n ", rc);
6885 goto out_stop_timers;
6887 /* Initialize the driver internal SLI layer lists. */
6888 lpfc_sli4_setup(phba);
6889 lpfc_sli4_queue_init(phba);
6891 /* update host els xri-sgl sizes and mappings */
6892 rc = lpfc_sli4_els_sgl_update(phba);
6893 if (unlikely(rc)) {
6894 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6895 "1400 Failed to update xri-sgl size and "
6896 "mapping: %d\n", rc);
6897 goto out_destroy_queue;
6900 /* register the els sgl pool to the port */
6901 rc = lpfc_sli4_repost_sgl_list(phba, &phba->sli4_hba.lpfc_els_sgl_list,
6902 phba->sli4_hba.els_xri_cnt);
6903 if (unlikely(rc < 0)) {
6904 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6905 "0582 Error %d during els sgl post "
6906 "operation\n", rc);
6907 rc = -ENODEV;
6908 goto out_destroy_queue;
6910 phba->sli4_hba.els_xri_cnt = rc;
6912 if (phba->nvmet_support) {
6913 /* update host nvmet xri-sgl sizes and mappings */
6914 rc = lpfc_sli4_nvmet_sgl_update(phba);
6915 if (unlikely(rc)) {
6916 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6917 "6308 Failed to update nvmet-sgl size "
6918 "and mapping: %d\n", rc);
6919 goto out_destroy_queue;
6922 /* register the nvmet sgl pool to the port */
6923 rc = lpfc_sli4_repost_sgl_list(
6924 phba,
6925 &phba->sli4_hba.lpfc_nvmet_sgl_list,
6926 phba->sli4_hba.nvmet_xri_cnt);
6927 if (unlikely(rc < 0)) {
6928 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6929 "3117 Error %d during nvmet "
6930 "sgl post\n", rc);
6931 rc = -ENODEV;
6932 goto out_destroy_queue;
6934 phba->sli4_hba.nvmet_xri_cnt = rc;
6936 cnt = phba->cfg_iocb_cnt * 1024;
6937 /* We need 1 iocbq for every SGL, for IO processing */
6938 cnt += phba->sli4_hba.nvmet_xri_cnt;
6939 } else {
6940 /* update host scsi xri-sgl sizes and mappings */
6941 rc = lpfc_sli4_scsi_sgl_update(phba);
6942 if (unlikely(rc)) {
6943 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6944 "6309 Failed to update scsi-sgl size "
6945 "and mapping: %d\n", rc);
6946 goto out_destroy_queue;
6949 /* update host nvme xri-sgl sizes and mappings */
6950 rc = lpfc_sli4_nvme_sgl_update(phba);
6951 if (unlikely(rc)) {
6952 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6953 "6082 Failed to update nvme-sgl size "
6954 "and mapping: %d\n", rc);
6955 goto out_destroy_queue;
6958 cnt = phba->cfg_iocb_cnt * 1024;
6961 if (!phba->sli.iocbq_lookup) {
6962 /* Initialize and populate the iocb list per host */
6963 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6964 "2821 initialize iocb list %d total %d\n",
6965 phba->cfg_iocb_cnt, cnt);
6966 rc = lpfc_init_iocb_list(phba, cnt);
6967 if (rc) {
6968 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6969 "1413 Failed to init iocb list.\n");
6970 goto out_destroy_queue;
6974 if (phba->nvmet_support)
6975 lpfc_nvmet_create_targetport(phba);
6977 if (phba->nvmet_support && phba->cfg_nvmet_mrq) {
6978 /* Post initial buffers to all RQs created */
6979 for (i = 0; i < phba->cfg_nvmet_mrq; i++) {
6980 rqbp = phba->sli4_hba.nvmet_mrq_hdr[i]->rqbp;
6981 INIT_LIST_HEAD(&rqbp->rqb_buffer_list);
6982 rqbp->rqb_alloc_buffer = lpfc_sli4_nvmet_alloc;
6983 rqbp->rqb_free_buffer = lpfc_sli4_nvmet_free;
6984 rqbp->entry_count = LPFC_NVMET_RQE_DEF_COUNT;
6985 rqbp->buffer_count = 0;
6987 lpfc_post_rq_buffer(
6988 phba, phba->sli4_hba.nvmet_mrq_hdr[i],
6989 phba->sli4_hba.nvmet_mrq_data[i],
6990 LPFC_NVMET_RQE_DEF_COUNT, i);
6994 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
6995 /* register the allocated scsi sgl pool to the port */
6996 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
6997 if (unlikely(rc)) {
6998 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6999 "0383 Error %d during scsi sgl post "
7000 "operation\n", rc);
7001 /* Some Scsi buffers were moved to abort scsi list */
7002 /* A pci function reset will repost them */
7003 rc = -ENODEV;
7004 goto out_destroy_queue;
7008 if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
7009 (phba->nvmet_support == 0)) {
7011 /* register the allocated nvme sgl pool to the port */
7012 rc = lpfc_repost_nvme_sgl_list(phba);
7013 if (unlikely(rc)) {
7014 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7015 "6116 Error %d during nvme sgl post "
7016 "operation\n", rc);
7017 /* Some NVME buffers were moved to abort nvme list */
7018 /* A pci function reset will repost them */
7019 rc = -ENODEV;
7020 goto out_destroy_queue;
7024 /* Post the rpi header region to the device. */
7025 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
7026 if (unlikely(rc)) {
7027 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7028 "0393 Error %d during rpi post operation\n",
7029 rc);
7030 rc = -ENODEV;
7031 goto out_destroy_queue;
7033 lpfc_sli4_node_prep(phba);
7035 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
7036 if ((phba->nvmet_support == 0) || (phba->cfg_nvmet_mrq == 1)) {
7038 * The FC Port needs to register FCFI (index 0)
7040 lpfc_reg_fcfi(phba, mboxq);
7041 mboxq->vport = phba->pport;
7042 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7043 if (rc != MBX_SUCCESS)
7044 goto out_unset_queue;
7045 rc = 0;
7046 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
7047 &mboxq->u.mqe.un.reg_fcfi);
7048 } else {
7049 /* We are a NVME Target mode with MRQ > 1 */
7051 /* First register the FCFI */
7052 lpfc_reg_fcfi_mrq(phba, mboxq, 0);
7053 mboxq->vport = phba->pport;
7054 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7055 if (rc != MBX_SUCCESS)
7056 goto out_unset_queue;
7057 rc = 0;
7058 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_mrq_fcfi,
7059 &mboxq->u.mqe.un.reg_fcfi_mrq);
7061 /* Next register the MRQs */
7062 lpfc_reg_fcfi_mrq(phba, mboxq, 1);
7063 mboxq->vport = phba->pport;
7064 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7065 if (rc != MBX_SUCCESS)
7066 goto out_unset_queue;
7067 rc = 0;
7069 /* Check if the port is configured to be disabled */
7070 lpfc_sli_read_link_ste(phba);
7073 /* Arm the CQs and then EQs on device */
7074 lpfc_sli4_arm_cqeq_intr(phba);
7076 /* Indicate device interrupt mode */
7077 phba->sli4_hba.intr_enable = 1;
7079 /* Allow asynchronous mailbox command to go through */
7080 spin_lock_irq(&phba->hbalock);
7081 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7082 spin_unlock_irq(&phba->hbalock);
7084 /* Post receive buffers to the device */
7085 lpfc_sli4_rb_setup(phba);
7087 /* Reset HBA FCF states after HBA reset */
7088 phba->fcf.fcf_flag = 0;
7089 phba->fcf.current_rec.flag = 0;
7091 /* Start the ELS watchdog timer */
7092 mod_timer(&vport->els_tmofunc,
7093 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
7095 /* Start heart beat timer */
7096 mod_timer(&phba->hb_tmofunc,
7097 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
7098 phba->hb_outstanding = 0;
7099 phba->last_completion_time = jiffies;
7101 /* Start error attention (ERATT) polling timer */
7102 mod_timer(&phba->eratt_poll,
7103 jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
7105 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
7106 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
7107 rc = pci_enable_pcie_error_reporting(phba->pcidev);
7108 if (!rc) {
7109 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7110 "2829 This device supports "
7111 "Advanced Error Reporting (AER)\n");
7112 spin_lock_irq(&phba->hbalock);
7113 phba->hba_flag |= HBA_AER_ENABLED;
7114 spin_unlock_irq(&phba->hbalock);
7115 } else {
7116 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7117 "2830 This device does not support "
7118 "Advanced Error Reporting (AER)\n");
7119 phba->cfg_aer_support = 0;
7121 rc = 0;
7125 * The port is ready, set the host's link state to LINK_DOWN
7126 * in preparation for link interrupts.
7128 spin_lock_irq(&phba->hbalock);
7129 phba->link_state = LPFC_LINK_DOWN;
7130 spin_unlock_irq(&phba->hbalock);
7131 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
7132 (phba->hba_flag & LINK_DISABLED)) {
7133 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7134 "3103 Adapter Link is disabled.\n");
7135 lpfc_down_link(phba, mboxq);
7136 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7137 if (rc != MBX_SUCCESS) {
7138 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
7139 "3104 Adapter failed to issue "
7140 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
7141 goto out_unset_queue;
7143 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
7144 /* don't perform init_link on SLI4 FC port loopback test */
7145 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
7146 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
7147 if (rc)
7148 goto out_unset_queue;
7151 mempool_free(mboxq, phba->mbox_mem_pool);
7152 return rc;
7153 out_unset_queue:
7154 /* Unset all the queues set up in this routine when error out */
7155 lpfc_sli4_queue_unset(phba);
7156 out_destroy_queue:
7157 lpfc_free_iocb_list(phba);
7158 lpfc_sli4_queue_destroy(phba);
7159 out_stop_timers:
7160 lpfc_stop_hba_timers(phba);
7161 out_free_mbox:
7162 mempool_free(mboxq, phba->mbox_mem_pool);
7163 return rc;
7167 * lpfc_mbox_timeout - Timeout call back function for mbox timer
7168 * @ptr: context object - pointer to hba structure.
7170 * This is the callback function for mailbox timer. The mailbox
7171 * timer is armed when a new mailbox command is issued and the timer
7172 * is deleted when the mailbox complete. The function is called by
7173 * the kernel timer code when a mailbox does not complete within
7174 * expected time. This function wakes up the worker thread to
7175 * process the mailbox timeout and returns. All the processing is
7176 * done by the worker thread function lpfc_mbox_timeout_handler.
7178 void
7179 lpfc_mbox_timeout(struct timer_list *t)
7181 struct lpfc_hba *phba = from_timer(phba, t, sli.mbox_tmo);
7182 unsigned long iflag;
7183 uint32_t tmo_posted;
7185 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
7186 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
7187 if (!tmo_posted)
7188 phba->pport->work_port_events |= WORKER_MBOX_TMO;
7189 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
7191 if (!tmo_posted)
7192 lpfc_worker_wake_up(phba);
7193 return;
7197 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
7198 * are pending
7199 * @phba: Pointer to HBA context object.
7201 * This function checks if any mailbox completions are present on the mailbox
7202 * completion queue.
7204 static bool
7205 lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
7208 uint32_t idx;
7209 struct lpfc_queue *mcq;
7210 struct lpfc_mcqe *mcqe;
7211 bool pending_completions = false;
7213 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7214 return false;
7216 /* Check for completions on mailbox completion queue */
7218 mcq = phba->sli4_hba.mbx_cq;
7219 idx = mcq->hba_index;
7220 while (bf_get_le32(lpfc_cqe_valid, mcq->qe[idx].cqe)) {
7221 mcqe = (struct lpfc_mcqe *)mcq->qe[idx].cqe;
7222 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
7223 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
7224 pending_completions = true;
7225 break;
7227 idx = (idx + 1) % mcq->entry_count;
7228 if (mcq->hba_index == idx)
7229 break;
7231 return pending_completions;
7236 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
7237 * that were missed.
7238 * @phba: Pointer to HBA context object.
7240 * For sli4, it is possible to miss an interrupt. As such mbox completions
7241 * maybe missed causing erroneous mailbox timeouts to occur. This function
7242 * checks to see if mbox completions are on the mailbox completion queue
7243 * and will process all the completions associated with the eq for the
7244 * mailbox completion queue.
7246 bool
7247 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
7250 uint32_t eqidx;
7251 struct lpfc_queue *fpeq = NULL;
7252 struct lpfc_eqe *eqe;
7253 bool mbox_pending;
7255 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
7256 return false;
7258 /* Find the eq associated with the mcq */
7260 if (phba->sli4_hba.hba_eq)
7261 for (eqidx = 0; eqidx < phba->io_channel_irqs; eqidx++)
7262 if (phba->sli4_hba.hba_eq[eqidx]->queue_id ==
7263 phba->sli4_hba.mbx_cq->assoc_qid) {
7264 fpeq = phba->sli4_hba.hba_eq[eqidx];
7265 break;
7267 if (!fpeq)
7268 return false;
7270 /* Turn off interrupts from this EQ */
7272 lpfc_sli4_eq_clr_intr(fpeq);
7274 /* Check to see if a mbox completion is pending */
7276 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
7279 * If a mbox completion is pending, process all the events on EQ
7280 * associated with the mbox completion queue (this could include
7281 * mailbox commands, async events, els commands, receive queue data
7282 * and fcp commands)
7285 if (mbox_pending)
7286 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
7287 lpfc_sli4_hba_handle_eqe(phba, eqe, eqidx);
7288 fpeq->EQ_processed++;
7291 /* Always clear and re-arm the EQ */
7293 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
7295 return mbox_pending;
7300 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
7301 * @phba: Pointer to HBA context object.
7303 * This function is called from worker thread when a mailbox command times out.
7304 * The caller is not required to hold any locks. This function will reset the
7305 * HBA and recover all the pending commands.
7307 void
7308 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
7310 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
7311 MAILBOX_t *mb = NULL;
7313 struct lpfc_sli *psli = &phba->sli;
7315 /* If the mailbox completed, process the completion and return */
7316 if (lpfc_sli4_process_missed_mbox_completions(phba))
7317 return;
7319 if (pmbox != NULL)
7320 mb = &pmbox->u.mb;
7321 /* Check the pmbox pointer first. There is a race condition
7322 * between the mbox timeout handler getting executed in the
7323 * worklist and the mailbox actually completing. When this
7324 * race condition occurs, the mbox_active will be NULL.
7326 spin_lock_irq(&phba->hbalock);
7327 if (pmbox == NULL) {
7328 lpfc_printf_log(phba, KERN_WARNING,
7329 LOG_MBOX | LOG_SLI,
7330 "0353 Active Mailbox cleared - mailbox timeout "
7331 "exiting\n");
7332 spin_unlock_irq(&phba->hbalock);
7333 return;
7336 /* Mbox cmd <mbxCommand> timeout */
7337 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7338 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
7339 mb->mbxCommand,
7340 phba->pport->port_state,
7341 phba->sli.sli_flag,
7342 phba->sli.mbox_active);
7343 spin_unlock_irq(&phba->hbalock);
7345 /* Setting state unknown so lpfc_sli_abort_iocb_ring
7346 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
7347 * it to fail all outstanding SCSI IO.
7349 spin_lock_irq(&phba->pport->work_port_lock);
7350 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
7351 spin_unlock_irq(&phba->pport->work_port_lock);
7352 spin_lock_irq(&phba->hbalock);
7353 phba->link_state = LPFC_LINK_UNKNOWN;
7354 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
7355 spin_unlock_irq(&phba->hbalock);
7357 lpfc_sli_abort_fcp_rings(phba);
7359 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7360 "0345 Resetting board due to mailbox timeout\n");
7362 /* Reset the HBA device */
7363 lpfc_reset_hba(phba);
7367 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
7368 * @phba: Pointer to HBA context object.
7369 * @pmbox: Pointer to mailbox object.
7370 * @flag: Flag indicating how the mailbox need to be processed.
7372 * This function is called by discovery code and HBA management code
7373 * to submit a mailbox command to firmware with SLI-3 interface spec. This
7374 * function gets the hbalock to protect the data structures.
7375 * The mailbox command can be submitted in polling mode, in which case
7376 * this function will wait in a polling loop for the completion of the
7377 * mailbox.
7378 * If the mailbox is submitted in no_wait mode (not polling) the
7379 * function will submit the command and returns immediately without waiting
7380 * for the mailbox completion. The no_wait is supported only when HBA
7381 * is in SLI2/SLI3 mode - interrupts are enabled.
7382 * The SLI interface allows only one mailbox pending at a time. If the
7383 * mailbox is issued in polling mode and there is already a mailbox
7384 * pending, then the function will return an error. If the mailbox is issued
7385 * in NO_WAIT mode and there is a mailbox pending already, the function
7386 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
7387 * The sli layer owns the mailbox object until the completion of mailbox
7388 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
7389 * return codes the caller owns the mailbox command after the return of
7390 * the function.
7392 static int
7393 lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
7394 uint32_t flag)
7396 MAILBOX_t *mbx;
7397 struct lpfc_sli *psli = &phba->sli;
7398 uint32_t status, evtctr;
7399 uint32_t ha_copy, hc_copy;
7400 int i;
7401 unsigned long timeout;
7402 unsigned long drvr_flag = 0;
7403 uint32_t word0, ldata;
7404 void __iomem *to_slim;
7405 int processing_queue = 0;
7407 spin_lock_irqsave(&phba->hbalock, drvr_flag);
7408 if (!pmbox) {
7409 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7410 /* processing mbox queue from intr_handler */
7411 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7412 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7413 return MBX_SUCCESS;
7415 processing_queue = 1;
7416 pmbox = lpfc_mbox_get(phba);
7417 if (!pmbox) {
7418 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7419 return MBX_SUCCESS;
7423 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
7424 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
7425 if(!pmbox->vport) {
7426 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7427 lpfc_printf_log(phba, KERN_ERR,
7428 LOG_MBOX | LOG_VPORT,
7429 "1806 Mbox x%x failed. No vport\n",
7430 pmbox->u.mb.mbxCommand);
7431 dump_stack();
7432 goto out_not_finished;
7436 /* If the PCI channel is in offline state, do not post mbox. */
7437 if (unlikely(pci_channel_offline(phba->pcidev))) {
7438 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7439 goto out_not_finished;
7442 /* If HBA has a deferred error attention, fail the iocb. */
7443 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
7444 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7445 goto out_not_finished;
7448 psli = &phba->sli;
7450 mbx = &pmbox->u.mb;
7451 status = MBX_SUCCESS;
7453 if (phba->link_state == LPFC_HBA_ERROR) {
7454 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7456 /* Mbox command <mbxCommand> cannot issue */
7457 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7458 "(%d):0311 Mailbox command x%x cannot "
7459 "issue Data: x%x x%x\n",
7460 pmbox->vport ? pmbox->vport->vpi : 0,
7461 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
7462 goto out_not_finished;
7465 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
7466 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
7467 !(hc_copy & HC_MBINT_ENA)) {
7468 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7469 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7470 "(%d):2528 Mailbox command x%x cannot "
7471 "issue Data: x%x x%x\n",
7472 pmbox->vport ? pmbox->vport->vpi : 0,
7473 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
7474 goto out_not_finished;
7478 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7479 /* Polling for a mbox command when another one is already active
7480 * is not allowed in SLI. Also, the driver must have established
7481 * SLI2 mode to queue and process multiple mbox commands.
7484 if (flag & MBX_POLL) {
7485 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7487 /* Mbox command <mbxCommand> cannot issue */
7488 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7489 "(%d):2529 Mailbox command x%x "
7490 "cannot issue Data: x%x x%x\n",
7491 pmbox->vport ? pmbox->vport->vpi : 0,
7492 pmbox->u.mb.mbxCommand,
7493 psli->sli_flag, flag);
7494 goto out_not_finished;
7497 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
7498 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7499 /* Mbox command <mbxCommand> cannot issue */
7500 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7501 "(%d):2530 Mailbox command x%x "
7502 "cannot issue Data: x%x x%x\n",
7503 pmbox->vport ? pmbox->vport->vpi : 0,
7504 pmbox->u.mb.mbxCommand,
7505 psli->sli_flag, flag);
7506 goto out_not_finished;
7509 /* Another mailbox command is still being processed, queue this
7510 * command to be processed later.
7512 lpfc_mbox_put(phba, pmbox);
7514 /* Mbox cmd issue - BUSY */
7515 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7516 "(%d):0308 Mbox cmd issue - BUSY Data: "
7517 "x%x x%x x%x x%x\n",
7518 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
7519 mbx->mbxCommand,
7520 phba->pport ? phba->pport->port_state : 0xff,
7521 psli->sli_flag, flag);
7523 psli->slistat.mbox_busy++;
7524 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7526 if (pmbox->vport) {
7527 lpfc_debugfs_disc_trc(pmbox->vport,
7528 LPFC_DISC_TRC_MBOX_VPORT,
7529 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
7530 (uint32_t)mbx->mbxCommand,
7531 mbx->un.varWords[0], mbx->un.varWords[1]);
7533 else {
7534 lpfc_debugfs_disc_trc(phba->pport,
7535 LPFC_DISC_TRC_MBOX,
7536 "MBOX Bsy: cmd:x%x mb:x%x x%x",
7537 (uint32_t)mbx->mbxCommand,
7538 mbx->un.varWords[0], mbx->un.varWords[1]);
7541 return MBX_BUSY;
7544 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7546 /* If we are not polling, we MUST be in SLI2 mode */
7547 if (flag != MBX_POLL) {
7548 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
7549 (mbx->mbxCommand != MBX_KILL_BOARD)) {
7550 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7551 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7552 /* Mbox command <mbxCommand> cannot issue */
7553 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7554 "(%d):2531 Mailbox command x%x "
7555 "cannot issue Data: x%x x%x\n",
7556 pmbox->vport ? pmbox->vport->vpi : 0,
7557 pmbox->u.mb.mbxCommand,
7558 psli->sli_flag, flag);
7559 goto out_not_finished;
7561 /* timeout active mbox command */
7562 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7563 1000);
7564 mod_timer(&psli->mbox_tmo, jiffies + timeout);
7567 /* Mailbox cmd <cmd> issue */
7568 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7569 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
7570 "x%x\n",
7571 pmbox->vport ? pmbox->vport->vpi : 0,
7572 mbx->mbxCommand,
7573 phba->pport ? phba->pport->port_state : 0xff,
7574 psli->sli_flag, flag);
7576 if (mbx->mbxCommand != MBX_HEARTBEAT) {
7577 if (pmbox->vport) {
7578 lpfc_debugfs_disc_trc(pmbox->vport,
7579 LPFC_DISC_TRC_MBOX_VPORT,
7580 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7581 (uint32_t)mbx->mbxCommand,
7582 mbx->un.varWords[0], mbx->un.varWords[1]);
7584 else {
7585 lpfc_debugfs_disc_trc(phba->pport,
7586 LPFC_DISC_TRC_MBOX,
7587 "MBOX Send: cmd:x%x mb:x%x x%x",
7588 (uint32_t)mbx->mbxCommand,
7589 mbx->un.varWords[0], mbx->un.varWords[1]);
7593 psli->slistat.mbox_cmd++;
7594 evtctr = psli->slistat.mbox_event;
7596 /* next set own bit for the adapter and copy over command word */
7597 mbx->mbxOwner = OWN_CHIP;
7599 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7600 /* Populate mbox extension offset word. */
7601 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
7602 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
7603 = (uint8_t *)phba->mbox_ext
7604 - (uint8_t *)phba->mbox;
7607 /* Copy the mailbox extension data */
7608 if (pmbox->in_ext_byte_len && pmbox->context2) {
7609 lpfc_sli_pcimem_bcopy(pmbox->context2,
7610 (uint8_t *)phba->mbox_ext,
7611 pmbox->in_ext_byte_len);
7613 /* Copy command data to host SLIM area */
7614 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
7615 } else {
7616 /* Populate mbox extension offset word. */
7617 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
7618 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
7619 = MAILBOX_HBA_EXT_OFFSET;
7621 /* Copy the mailbox extension data */
7622 if (pmbox->in_ext_byte_len && pmbox->context2)
7623 lpfc_memcpy_to_slim(phba->MBslimaddr +
7624 MAILBOX_HBA_EXT_OFFSET,
7625 pmbox->context2, pmbox->in_ext_byte_len);
7627 if (mbx->mbxCommand == MBX_CONFIG_PORT)
7628 /* copy command data into host mbox for cmpl */
7629 lpfc_sli_pcimem_bcopy(mbx, phba->mbox,
7630 MAILBOX_CMD_SIZE);
7632 /* First copy mbox command data to HBA SLIM, skip past first
7633 word */
7634 to_slim = phba->MBslimaddr + sizeof (uint32_t);
7635 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
7636 MAILBOX_CMD_SIZE - sizeof (uint32_t));
7638 /* Next copy over first word, with mbxOwner set */
7639 ldata = *((uint32_t *)mbx);
7640 to_slim = phba->MBslimaddr;
7641 writel(ldata, to_slim);
7642 readl(to_slim); /* flush */
7644 if (mbx->mbxCommand == MBX_CONFIG_PORT)
7645 /* switch over to host mailbox */
7646 psli->sli_flag |= LPFC_SLI_ACTIVE;
7649 wmb();
7651 switch (flag) {
7652 case MBX_NOWAIT:
7653 /* Set up reference to mailbox command */
7654 psli->mbox_active = pmbox;
7655 /* Interrupt board to do it */
7656 writel(CA_MBATT, phba->CAregaddr);
7657 readl(phba->CAregaddr); /* flush */
7658 /* Don't wait for it to finish, just return */
7659 break;
7661 case MBX_POLL:
7662 /* Set up null reference to mailbox command */
7663 psli->mbox_active = NULL;
7664 /* Interrupt board to do it */
7665 writel(CA_MBATT, phba->CAregaddr);
7666 readl(phba->CAregaddr); /* flush */
7668 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7669 /* First read mbox status word */
7670 word0 = *((uint32_t *)phba->mbox);
7671 word0 = le32_to_cpu(word0);
7672 } else {
7673 /* First read mbox status word */
7674 if (lpfc_readl(phba->MBslimaddr, &word0)) {
7675 spin_unlock_irqrestore(&phba->hbalock,
7676 drvr_flag);
7677 goto out_not_finished;
7681 /* Read the HBA Host Attention Register */
7682 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7683 spin_unlock_irqrestore(&phba->hbalock,
7684 drvr_flag);
7685 goto out_not_finished;
7687 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7688 1000) + jiffies;
7689 i = 0;
7690 /* Wait for command to complete */
7691 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
7692 (!(ha_copy & HA_MBATT) &&
7693 (phba->link_state > LPFC_WARM_START))) {
7694 if (time_after(jiffies, timeout)) {
7695 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7696 spin_unlock_irqrestore(&phba->hbalock,
7697 drvr_flag);
7698 goto out_not_finished;
7701 /* Check if we took a mbox interrupt while we were
7702 polling */
7703 if (((word0 & OWN_CHIP) != OWN_CHIP)
7704 && (evtctr != psli->slistat.mbox_event))
7705 break;
7707 if (i++ > 10) {
7708 spin_unlock_irqrestore(&phba->hbalock,
7709 drvr_flag);
7710 msleep(1);
7711 spin_lock_irqsave(&phba->hbalock, drvr_flag);
7714 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7715 /* First copy command data */
7716 word0 = *((uint32_t *)phba->mbox);
7717 word0 = le32_to_cpu(word0);
7718 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
7719 MAILBOX_t *slimmb;
7720 uint32_t slimword0;
7721 /* Check real SLIM for any errors */
7722 slimword0 = readl(phba->MBslimaddr);
7723 slimmb = (MAILBOX_t *) & slimword0;
7724 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
7725 && slimmb->mbxStatus) {
7726 psli->sli_flag &=
7727 ~LPFC_SLI_ACTIVE;
7728 word0 = slimword0;
7731 } else {
7732 /* First copy command data */
7733 word0 = readl(phba->MBslimaddr);
7735 /* Read the HBA Host Attention Register */
7736 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7737 spin_unlock_irqrestore(&phba->hbalock,
7738 drvr_flag);
7739 goto out_not_finished;
7743 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7744 /* copy results back to user */
7745 lpfc_sli_pcimem_bcopy(phba->mbox, mbx,
7746 MAILBOX_CMD_SIZE);
7747 /* Copy the mailbox extension data */
7748 if (pmbox->out_ext_byte_len && pmbox->context2) {
7749 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
7750 pmbox->context2,
7751 pmbox->out_ext_byte_len);
7753 } else {
7754 /* First copy command data */
7755 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
7756 MAILBOX_CMD_SIZE);
7757 /* Copy the mailbox extension data */
7758 if (pmbox->out_ext_byte_len && pmbox->context2) {
7759 lpfc_memcpy_from_slim(pmbox->context2,
7760 phba->MBslimaddr +
7761 MAILBOX_HBA_EXT_OFFSET,
7762 pmbox->out_ext_byte_len);
7766 writel(HA_MBATT, phba->HAregaddr);
7767 readl(phba->HAregaddr); /* flush */
7769 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7770 status = mbx->mbxStatus;
7773 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7774 return status;
7776 out_not_finished:
7777 if (processing_queue) {
7778 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
7779 lpfc_mbox_cmpl_put(phba, pmbox);
7781 return MBX_NOT_FINISHED;
7785 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
7786 * @phba: Pointer to HBA context object.
7788 * The function blocks the posting of SLI4 asynchronous mailbox commands from
7789 * the driver internal pending mailbox queue. It will then try to wait out the
7790 * possible outstanding mailbox command before return.
7792 * Returns:
7793 * 0 - the outstanding mailbox command completed; otherwise, the wait for
7794 * the outstanding mailbox command timed out.
7796 static int
7797 lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
7799 struct lpfc_sli *psli = &phba->sli;
7800 int rc = 0;
7801 unsigned long timeout = 0;
7803 /* Mark the asynchronous mailbox command posting as blocked */
7804 spin_lock_irq(&phba->hbalock);
7805 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7806 /* Determine how long we might wait for the active mailbox
7807 * command to be gracefully completed by firmware.
7809 if (phba->sli.mbox_active)
7810 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
7811 phba->sli.mbox_active) *
7812 1000) + jiffies;
7813 spin_unlock_irq(&phba->hbalock);
7815 /* Make sure the mailbox is really active */
7816 if (timeout)
7817 lpfc_sli4_process_missed_mbox_completions(phba);
7819 /* Wait for the outstnading mailbox command to complete */
7820 while (phba->sli.mbox_active) {
7821 /* Check active mailbox complete status every 2ms */
7822 msleep(2);
7823 if (time_after(jiffies, timeout)) {
7824 /* Timeout, marked the outstanding cmd not complete */
7825 rc = 1;
7826 break;
7830 /* Can not cleanly block async mailbox command, fails it */
7831 if (rc) {
7832 spin_lock_irq(&phba->hbalock);
7833 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7834 spin_unlock_irq(&phba->hbalock);
7836 return rc;
7840 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
7841 * @phba: Pointer to HBA context object.
7843 * The function unblocks and resume posting of SLI4 asynchronous mailbox
7844 * commands from the driver internal pending mailbox queue. It makes sure
7845 * that there is no outstanding mailbox command before resuming posting
7846 * asynchronous mailbox commands. If, for any reason, there is outstanding
7847 * mailbox command, it will try to wait it out before resuming asynchronous
7848 * mailbox command posting.
7850 static void
7851 lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
7853 struct lpfc_sli *psli = &phba->sli;
7855 spin_lock_irq(&phba->hbalock);
7856 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7857 /* Asynchronous mailbox posting is not blocked, do nothing */
7858 spin_unlock_irq(&phba->hbalock);
7859 return;
7862 /* Outstanding synchronous mailbox command is guaranteed to be done,
7863 * successful or timeout, after timing-out the outstanding mailbox
7864 * command shall always be removed, so just unblock posting async
7865 * mailbox command and resume
7867 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7868 spin_unlock_irq(&phba->hbalock);
7870 /* wake up worker thread to post asynchronlous mailbox command */
7871 lpfc_worker_wake_up(phba);
7875 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
7876 * @phba: Pointer to HBA context object.
7877 * @mboxq: Pointer to mailbox object.
7879 * The function waits for the bootstrap mailbox register ready bit from
7880 * port for twice the regular mailbox command timeout value.
7882 * 0 - no timeout on waiting for bootstrap mailbox register ready.
7883 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
7885 static int
7886 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7888 uint32_t db_ready;
7889 unsigned long timeout;
7890 struct lpfc_register bmbx_reg;
7892 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
7893 * 1000) + jiffies;
7895 do {
7896 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
7897 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
7898 if (!db_ready)
7899 msleep(2);
7901 if (time_after(jiffies, timeout))
7902 return MBXERR_ERROR;
7903 } while (!db_ready);
7905 return 0;
7909 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7910 * @phba: Pointer to HBA context object.
7911 * @mboxq: Pointer to mailbox object.
7913 * The function posts a mailbox to the port. The mailbox is expected
7914 * to be comletely filled in and ready for the port to operate on it.
7915 * This routine executes a synchronous completion operation on the
7916 * mailbox by polling for its completion.
7918 * The caller must not be holding any locks when calling this routine.
7920 * Returns:
7921 * MBX_SUCCESS - mailbox posted successfully
7922 * Any of the MBX error values.
7924 static int
7925 lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7927 int rc = MBX_SUCCESS;
7928 unsigned long iflag;
7929 uint32_t mcqe_status;
7930 uint32_t mbx_cmnd;
7931 struct lpfc_sli *psli = &phba->sli;
7932 struct lpfc_mqe *mb = &mboxq->u.mqe;
7933 struct lpfc_bmbx_create *mbox_rgn;
7934 struct dma_address *dma_address;
7937 * Only one mailbox can be active to the bootstrap mailbox region
7938 * at a time and there is no queueing provided.
7940 spin_lock_irqsave(&phba->hbalock, iflag);
7941 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7942 spin_unlock_irqrestore(&phba->hbalock, iflag);
7943 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7944 "(%d):2532 Mailbox command x%x (x%x/x%x) "
7945 "cannot issue Data: x%x x%x\n",
7946 mboxq->vport ? mboxq->vport->vpi : 0,
7947 mboxq->u.mb.mbxCommand,
7948 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7949 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
7950 psli->sli_flag, MBX_POLL);
7951 return MBXERR_ERROR;
7953 /* The server grabs the token and owns it until release */
7954 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7955 phba->sli.mbox_active = mboxq;
7956 spin_unlock_irqrestore(&phba->hbalock, iflag);
7958 /* wait for bootstrap mbox register for readyness */
7959 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7960 if (rc)
7961 goto exit;
7964 * Initialize the bootstrap memory region to avoid stale data areas
7965 * in the mailbox post. Then copy the caller's mailbox contents to
7966 * the bmbx mailbox region.
7968 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
7969 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
7970 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
7971 sizeof(struct lpfc_mqe));
7973 /* Post the high mailbox dma address to the port and wait for ready. */
7974 dma_address = &phba->sli4_hba.bmbx.dma_address;
7975 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
7977 /* wait for bootstrap mbox register for hi-address write done */
7978 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7979 if (rc)
7980 goto exit;
7982 /* Post the low mailbox dma address to the port. */
7983 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
7985 /* wait for bootstrap mbox register for low address write done */
7986 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7987 if (rc)
7988 goto exit;
7991 * Read the CQ to ensure the mailbox has completed.
7992 * If so, update the mailbox status so that the upper layers
7993 * can complete the request normally.
7995 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
7996 sizeof(struct lpfc_mqe));
7997 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
7998 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
7999 sizeof(struct lpfc_mcqe));
8000 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
8002 * When the CQE status indicates a failure and the mailbox status
8003 * indicates success then copy the CQE status into the mailbox status
8004 * (and prefix it with x4000).
8006 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
8007 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
8008 bf_set(lpfc_mqe_status, mb,
8009 (LPFC_MBX_ERROR_RANGE | mcqe_status));
8010 rc = MBXERR_ERROR;
8011 } else
8012 lpfc_sli4_swap_str(phba, mboxq);
8014 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8015 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
8016 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
8017 " x%x x%x CQ: x%x x%x x%x x%x\n",
8018 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
8019 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8020 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8021 bf_get(lpfc_mqe_status, mb),
8022 mb->un.mb_words[0], mb->un.mb_words[1],
8023 mb->un.mb_words[2], mb->un.mb_words[3],
8024 mb->un.mb_words[4], mb->un.mb_words[5],
8025 mb->un.mb_words[6], mb->un.mb_words[7],
8026 mb->un.mb_words[8], mb->un.mb_words[9],
8027 mb->un.mb_words[10], mb->un.mb_words[11],
8028 mb->un.mb_words[12], mboxq->mcqe.word0,
8029 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
8030 mboxq->mcqe.trailer);
8031 exit:
8032 /* We are holding the token, no needed for lock when release */
8033 spin_lock_irqsave(&phba->hbalock, iflag);
8034 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8035 phba->sli.mbox_active = NULL;
8036 spin_unlock_irqrestore(&phba->hbalock, iflag);
8037 return rc;
8041 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
8042 * @phba: Pointer to HBA context object.
8043 * @pmbox: Pointer to mailbox object.
8044 * @flag: Flag indicating how the mailbox need to be processed.
8046 * This function is called by discovery code and HBA management code to submit
8047 * a mailbox command to firmware with SLI-4 interface spec.
8049 * Return codes the caller owns the mailbox command after the return of the
8050 * function.
8052 static int
8053 lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
8054 uint32_t flag)
8056 struct lpfc_sli *psli = &phba->sli;
8057 unsigned long iflags;
8058 int rc;
8060 /* dump from issue mailbox command if setup */
8061 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
8063 rc = lpfc_mbox_dev_check(phba);
8064 if (unlikely(rc)) {
8065 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8066 "(%d):2544 Mailbox command x%x (x%x/x%x) "
8067 "cannot issue Data: x%x x%x\n",
8068 mboxq->vport ? mboxq->vport->vpi : 0,
8069 mboxq->u.mb.mbxCommand,
8070 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8071 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8072 psli->sli_flag, flag);
8073 goto out_not_finished;
8076 /* Detect polling mode and jump to a handler */
8077 if (!phba->sli4_hba.intr_enable) {
8078 if (flag == MBX_POLL)
8079 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8080 else
8081 rc = -EIO;
8082 if (rc != MBX_SUCCESS)
8083 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8084 "(%d):2541 Mailbox command x%x "
8085 "(x%x/x%x) failure: "
8086 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8087 "Data: x%x x%x\n,",
8088 mboxq->vport ? mboxq->vport->vpi : 0,
8089 mboxq->u.mb.mbxCommand,
8090 lpfc_sli_config_mbox_subsys_get(phba,
8091 mboxq),
8092 lpfc_sli_config_mbox_opcode_get(phba,
8093 mboxq),
8094 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8095 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8096 bf_get(lpfc_mcqe_ext_status,
8097 &mboxq->mcqe),
8098 psli->sli_flag, flag);
8099 return rc;
8100 } else if (flag == MBX_POLL) {
8101 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
8102 "(%d):2542 Try to issue mailbox command "
8103 "x%x (x%x/x%x) synchronously ahead of async"
8104 "mailbox command queue: x%x x%x\n",
8105 mboxq->vport ? mboxq->vport->vpi : 0,
8106 mboxq->u.mb.mbxCommand,
8107 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8108 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8109 psli->sli_flag, flag);
8110 /* Try to block the asynchronous mailbox posting */
8111 rc = lpfc_sli4_async_mbox_block(phba);
8112 if (!rc) {
8113 /* Successfully blocked, now issue sync mbox cmd */
8114 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
8115 if (rc != MBX_SUCCESS)
8116 lpfc_printf_log(phba, KERN_WARNING,
8117 LOG_MBOX | LOG_SLI,
8118 "(%d):2597 Sync Mailbox command "
8119 "x%x (x%x/x%x) failure: "
8120 "mqe_sta: x%x mcqe_sta: x%x/x%x "
8121 "Data: x%x x%x\n,",
8122 mboxq->vport ? mboxq->vport->vpi : 0,
8123 mboxq->u.mb.mbxCommand,
8124 lpfc_sli_config_mbox_subsys_get(phba,
8125 mboxq),
8126 lpfc_sli_config_mbox_opcode_get(phba,
8127 mboxq),
8128 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
8129 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
8130 bf_get(lpfc_mcqe_ext_status,
8131 &mboxq->mcqe),
8132 psli->sli_flag, flag);
8133 /* Unblock the async mailbox posting afterward */
8134 lpfc_sli4_async_mbox_unblock(phba);
8136 return rc;
8139 /* Now, interrupt mode asynchrous mailbox command */
8140 rc = lpfc_mbox_cmd_check(phba, mboxq);
8141 if (rc) {
8142 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8143 "(%d):2543 Mailbox command x%x (x%x/x%x) "
8144 "cannot issue Data: x%x x%x\n",
8145 mboxq->vport ? mboxq->vport->vpi : 0,
8146 mboxq->u.mb.mbxCommand,
8147 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8148 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8149 psli->sli_flag, flag);
8150 goto out_not_finished;
8153 /* Put the mailbox command to the driver internal FIFO */
8154 psli->slistat.mbox_busy++;
8155 spin_lock_irqsave(&phba->hbalock, iflags);
8156 lpfc_mbox_put(phba, mboxq);
8157 spin_unlock_irqrestore(&phba->hbalock, iflags);
8158 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8159 "(%d):0354 Mbox cmd issue - Enqueue Data: "
8160 "x%x (x%x/x%x) x%x x%x x%x\n",
8161 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
8162 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8163 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8164 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8165 phba->pport->port_state,
8166 psli->sli_flag, MBX_NOWAIT);
8167 /* Wake up worker thread to transport mailbox command from head */
8168 lpfc_worker_wake_up(phba);
8170 return MBX_BUSY;
8172 out_not_finished:
8173 return MBX_NOT_FINISHED;
8177 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
8178 * @phba: Pointer to HBA context object.
8180 * This function is called by worker thread to send a mailbox command to
8181 * SLI4 HBA firmware.
8185 lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
8187 struct lpfc_sli *psli = &phba->sli;
8188 LPFC_MBOXQ_t *mboxq;
8189 int rc = MBX_SUCCESS;
8190 unsigned long iflags;
8191 struct lpfc_mqe *mqe;
8192 uint32_t mbx_cmnd;
8194 /* Check interrupt mode before post async mailbox command */
8195 if (unlikely(!phba->sli4_hba.intr_enable))
8196 return MBX_NOT_FINISHED;
8198 /* Check for mailbox command service token */
8199 spin_lock_irqsave(&phba->hbalock, iflags);
8200 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
8201 spin_unlock_irqrestore(&phba->hbalock, iflags);
8202 return MBX_NOT_FINISHED;
8204 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8205 spin_unlock_irqrestore(&phba->hbalock, iflags);
8206 return MBX_NOT_FINISHED;
8208 if (unlikely(phba->sli.mbox_active)) {
8209 spin_unlock_irqrestore(&phba->hbalock, iflags);
8210 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8211 "0384 There is pending active mailbox cmd\n");
8212 return MBX_NOT_FINISHED;
8214 /* Take the mailbox command service token */
8215 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
8217 /* Get the next mailbox command from head of queue */
8218 mboxq = lpfc_mbox_get(phba);
8220 /* If no more mailbox command waiting for post, we're done */
8221 if (!mboxq) {
8222 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8223 spin_unlock_irqrestore(&phba->hbalock, iflags);
8224 return MBX_SUCCESS;
8226 phba->sli.mbox_active = mboxq;
8227 spin_unlock_irqrestore(&phba->hbalock, iflags);
8229 /* Check device readiness for posting mailbox command */
8230 rc = lpfc_mbox_dev_check(phba);
8231 if (unlikely(rc))
8232 /* Driver clean routine will clean up pending mailbox */
8233 goto out_not_finished;
8235 /* Prepare the mbox command to be posted */
8236 mqe = &mboxq->u.mqe;
8237 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
8239 /* Start timer for the mbox_tmo and log some mailbox post messages */
8240 mod_timer(&psli->mbox_tmo, (jiffies +
8241 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
8243 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
8244 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
8245 "x%x x%x\n",
8246 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
8247 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8248 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8249 phba->pport->port_state, psli->sli_flag);
8251 if (mbx_cmnd != MBX_HEARTBEAT) {
8252 if (mboxq->vport) {
8253 lpfc_debugfs_disc_trc(mboxq->vport,
8254 LPFC_DISC_TRC_MBOX_VPORT,
8255 "MBOX Send vport: cmd:x%x mb:x%x x%x",
8256 mbx_cmnd, mqe->un.mb_words[0],
8257 mqe->un.mb_words[1]);
8258 } else {
8259 lpfc_debugfs_disc_trc(phba->pport,
8260 LPFC_DISC_TRC_MBOX,
8261 "MBOX Send: cmd:x%x mb:x%x x%x",
8262 mbx_cmnd, mqe->un.mb_words[0],
8263 mqe->un.mb_words[1]);
8266 psli->slistat.mbox_cmd++;
8268 /* Post the mailbox command to the port */
8269 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
8270 if (rc != MBX_SUCCESS) {
8271 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
8272 "(%d):2533 Mailbox command x%x (x%x/x%x) "
8273 "cannot issue Data: x%x x%x\n",
8274 mboxq->vport ? mboxq->vport->vpi : 0,
8275 mboxq->u.mb.mbxCommand,
8276 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
8277 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
8278 psli->sli_flag, MBX_NOWAIT);
8279 goto out_not_finished;
8282 return rc;
8284 out_not_finished:
8285 spin_lock_irqsave(&phba->hbalock, iflags);
8286 if (phba->sli.mbox_active) {
8287 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8288 __lpfc_mbox_cmpl_put(phba, mboxq);
8289 /* Release the token */
8290 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8291 phba->sli.mbox_active = NULL;
8293 spin_unlock_irqrestore(&phba->hbalock, iflags);
8295 return MBX_NOT_FINISHED;
8299 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
8300 * @phba: Pointer to HBA context object.
8301 * @pmbox: Pointer to mailbox object.
8302 * @flag: Flag indicating how the mailbox need to be processed.
8304 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
8305 * the API jump table function pointer from the lpfc_hba struct.
8307 * Return codes the caller owns the mailbox command after the return of the
8308 * function.
8311 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
8313 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
8317 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
8318 * @phba: The hba struct for which this call is being executed.
8319 * @dev_grp: The HBA PCI-Device group number.
8321 * This routine sets up the mbox interface API function jump table in @phba
8322 * struct.
8323 * Returns: 0 - success, -ENODEV - failure.
8326 lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8329 switch (dev_grp) {
8330 case LPFC_PCI_DEV_LP:
8331 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
8332 phba->lpfc_sli_handle_slow_ring_event =
8333 lpfc_sli_handle_slow_ring_event_s3;
8334 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
8335 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
8336 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
8337 break;
8338 case LPFC_PCI_DEV_OC:
8339 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
8340 phba->lpfc_sli_handle_slow_ring_event =
8341 lpfc_sli_handle_slow_ring_event_s4;
8342 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
8343 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
8344 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
8345 break;
8346 default:
8347 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8348 "1420 Invalid HBA PCI-device group: 0x%x\n",
8349 dev_grp);
8350 return -ENODEV;
8351 break;
8353 return 0;
8357 * __lpfc_sli_ringtx_put - Add an iocb to the txq
8358 * @phba: Pointer to HBA context object.
8359 * @pring: Pointer to driver SLI ring object.
8360 * @piocb: Pointer to address of newly added command iocb.
8362 * This function is called with hbalock held to add a command
8363 * iocb to the txq when SLI layer cannot submit the command iocb
8364 * to the ring.
8366 void
8367 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8368 struct lpfc_iocbq *piocb)
8370 lockdep_assert_held(&phba->hbalock);
8371 /* Insert the caller's iocb in the txq tail for later processing. */
8372 list_add_tail(&piocb->list, &pring->txq);
8376 * lpfc_sli_next_iocb - Get the next iocb in the txq
8377 * @phba: Pointer to HBA context object.
8378 * @pring: Pointer to driver SLI ring object.
8379 * @piocb: Pointer to address of newly added command iocb.
8381 * This function is called with hbalock held before a new
8382 * iocb is submitted to the firmware. This function checks
8383 * txq to flush the iocbs in txq to Firmware before
8384 * submitting new iocbs to the Firmware.
8385 * If there are iocbs in the txq which need to be submitted
8386 * to firmware, lpfc_sli_next_iocb returns the first element
8387 * of the txq after dequeuing it from txq.
8388 * If there is no iocb in the txq then the function will return
8389 * *piocb and *piocb is set to NULL. Caller needs to check
8390 * *piocb to find if there are more commands in the txq.
8392 static struct lpfc_iocbq *
8393 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8394 struct lpfc_iocbq **piocb)
8396 struct lpfc_iocbq * nextiocb;
8398 lockdep_assert_held(&phba->hbalock);
8400 nextiocb = lpfc_sli_ringtx_get(phba, pring);
8401 if (!nextiocb) {
8402 nextiocb = *piocb;
8403 *piocb = NULL;
8406 return nextiocb;
8410 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
8411 * @phba: Pointer to HBA context object.
8412 * @ring_number: SLI ring number to issue iocb on.
8413 * @piocb: Pointer to command iocb.
8414 * @flag: Flag indicating if this command can be put into txq.
8416 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
8417 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
8418 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
8419 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
8420 * this function allows only iocbs for posting buffers. This function finds
8421 * next available slot in the command ring and posts the command to the
8422 * available slot and writes the port attention register to request HBA start
8423 * processing new iocb. If there is no slot available in the ring and
8424 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
8425 * the function returns IOCB_BUSY.
8427 * This function is called with hbalock held. The function will return success
8428 * after it successfully submit the iocb to firmware or after adding to the
8429 * txq.
8431 static int
8432 __lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
8433 struct lpfc_iocbq *piocb, uint32_t flag)
8435 struct lpfc_iocbq *nextiocb;
8436 IOCB_t *iocb;
8437 struct lpfc_sli_ring *pring = &phba->sli.sli3_ring[ring_number];
8439 lockdep_assert_held(&phba->hbalock);
8441 if (piocb->iocb_cmpl && (!piocb->vport) &&
8442 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
8443 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
8444 lpfc_printf_log(phba, KERN_ERR,
8445 LOG_SLI | LOG_VPORT,
8446 "1807 IOCB x%x failed. No vport\n",
8447 piocb->iocb.ulpCommand);
8448 dump_stack();
8449 return IOCB_ERROR;
8453 /* If the PCI channel is in offline state, do not post iocbs. */
8454 if (unlikely(pci_channel_offline(phba->pcidev)))
8455 return IOCB_ERROR;
8457 /* If HBA has a deferred error attention, fail the iocb. */
8458 if (unlikely(phba->hba_flag & DEFER_ERATT))
8459 return IOCB_ERROR;
8462 * We should never get an IOCB if we are in a < LINK_DOWN state
8464 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
8465 return IOCB_ERROR;
8468 * Check to see if we are blocking IOCB processing because of a
8469 * outstanding event.
8471 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
8472 goto iocb_busy;
8474 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
8476 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
8477 * can be issued if the link is not up.
8479 switch (piocb->iocb.ulpCommand) {
8480 case CMD_GEN_REQUEST64_CR:
8481 case CMD_GEN_REQUEST64_CX:
8482 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
8483 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
8484 FC_RCTL_DD_UNSOL_CMD) ||
8485 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
8486 MENLO_TRANSPORT_TYPE))
8488 goto iocb_busy;
8489 break;
8490 case CMD_QUE_RING_BUF_CN:
8491 case CMD_QUE_RING_BUF64_CN:
8493 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
8494 * completion, iocb_cmpl MUST be 0.
8496 if (piocb->iocb_cmpl)
8497 piocb->iocb_cmpl = NULL;
8498 /*FALLTHROUGH*/
8499 case CMD_CREATE_XRI_CR:
8500 case CMD_CLOSE_XRI_CN:
8501 case CMD_CLOSE_XRI_CX:
8502 break;
8503 default:
8504 goto iocb_busy;
8508 * For FCP commands, we must be in a state where we can process link
8509 * attention events.
8511 } else if (unlikely(pring->ringno == LPFC_FCP_RING &&
8512 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
8513 goto iocb_busy;
8516 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
8517 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
8518 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
8520 if (iocb)
8521 lpfc_sli_update_ring(phba, pring);
8522 else
8523 lpfc_sli_update_full_ring(phba, pring);
8525 if (!piocb)
8526 return IOCB_SUCCESS;
8528 goto out_busy;
8530 iocb_busy:
8531 pring->stats.iocb_cmd_delay++;
8533 out_busy:
8535 if (!(flag & SLI_IOCB_RET_IOCB)) {
8536 __lpfc_sli_ringtx_put(phba, pring, piocb);
8537 return IOCB_SUCCESS;
8540 return IOCB_BUSY;
8544 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
8545 * @phba: Pointer to HBA context object.
8546 * @piocb: Pointer to command iocb.
8547 * @sglq: Pointer to the scatter gather queue object.
8549 * This routine converts the bpl or bde that is in the IOCB
8550 * to a sgl list for the sli4 hardware. The physical address
8551 * of the bpl/bde is converted back to a virtual address.
8552 * If the IOCB contains a BPL then the list of BDE's is
8553 * converted to sli4_sge's. If the IOCB contains a single
8554 * BDE then it is converted to a single sli_sge.
8555 * The IOCB is still in cpu endianess so the contents of
8556 * the bpl can be used without byte swapping.
8558 * Returns valid XRI = Success, NO_XRI = Failure.
8560 static uint16_t
8561 lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
8562 struct lpfc_sglq *sglq)
8564 uint16_t xritag = NO_XRI;
8565 struct ulp_bde64 *bpl = NULL;
8566 struct ulp_bde64 bde;
8567 struct sli4_sge *sgl = NULL;
8568 struct lpfc_dmabuf *dmabuf;
8569 IOCB_t *icmd;
8570 int numBdes = 0;
8571 int i = 0;
8572 uint32_t offset = 0; /* accumulated offset in the sg request list */
8573 int inbound = 0; /* number of sg reply entries inbound from firmware */
8575 if (!piocbq || !sglq)
8576 return xritag;
8578 sgl = (struct sli4_sge *)sglq->sgl;
8579 icmd = &piocbq->iocb;
8580 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
8581 return sglq->sli4_xritag;
8582 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8583 numBdes = icmd->un.genreq64.bdl.bdeSize /
8584 sizeof(struct ulp_bde64);
8585 /* The addrHigh and addrLow fields within the IOCB
8586 * have not been byteswapped yet so there is no
8587 * need to swap them back.
8589 if (piocbq->context3)
8590 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
8591 else
8592 return xritag;
8594 bpl = (struct ulp_bde64 *)dmabuf->virt;
8595 if (!bpl)
8596 return xritag;
8598 for (i = 0; i < numBdes; i++) {
8599 /* Should already be byte swapped. */
8600 sgl->addr_hi = bpl->addrHigh;
8601 sgl->addr_lo = bpl->addrLow;
8603 sgl->word2 = le32_to_cpu(sgl->word2);
8604 if ((i+1) == numBdes)
8605 bf_set(lpfc_sli4_sge_last, sgl, 1);
8606 else
8607 bf_set(lpfc_sli4_sge_last, sgl, 0);
8608 /* swap the size field back to the cpu so we
8609 * can assign it to the sgl.
8611 bde.tus.w = le32_to_cpu(bpl->tus.w);
8612 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
8613 /* The offsets in the sgl need to be accumulated
8614 * separately for the request and reply lists.
8615 * The request is always first, the reply follows.
8617 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
8618 /* add up the reply sg entries */
8619 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
8620 inbound++;
8621 /* first inbound? reset the offset */
8622 if (inbound == 1)
8623 offset = 0;
8624 bf_set(lpfc_sli4_sge_offset, sgl, offset);
8625 bf_set(lpfc_sli4_sge_type, sgl,
8626 LPFC_SGE_TYPE_DATA);
8627 offset += bde.tus.f.bdeSize;
8629 sgl->word2 = cpu_to_le32(sgl->word2);
8630 bpl++;
8631 sgl++;
8633 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
8634 /* The addrHigh and addrLow fields of the BDE have not
8635 * been byteswapped yet so they need to be swapped
8636 * before putting them in the sgl.
8638 sgl->addr_hi =
8639 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
8640 sgl->addr_lo =
8641 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
8642 sgl->word2 = le32_to_cpu(sgl->word2);
8643 bf_set(lpfc_sli4_sge_last, sgl, 1);
8644 sgl->word2 = cpu_to_le32(sgl->word2);
8645 sgl->sge_len =
8646 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
8648 return sglq->sli4_xritag;
8652 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
8653 * @phba: Pointer to HBA context object.
8654 * @piocb: Pointer to command iocb.
8655 * @wqe: Pointer to the work queue entry.
8657 * This routine converts the iocb command to its Work Queue Entry
8658 * equivalent. The wqe pointer should not have any fields set when
8659 * this routine is called because it will memcpy over them.
8660 * This routine does not set the CQ_ID or the WQEC bits in the
8661 * wqe.
8663 * Returns: 0 = Success, IOCB_ERROR = Failure.
8665 static int
8666 lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
8667 union lpfc_wqe *wqe)
8669 uint32_t xmit_len = 0, total_len = 0;
8670 uint8_t ct = 0;
8671 uint32_t fip;
8672 uint32_t abort_tag;
8673 uint8_t command_type = ELS_COMMAND_NON_FIP;
8674 uint8_t cmnd;
8675 uint16_t xritag;
8676 uint16_t abrt_iotag;
8677 struct lpfc_iocbq *abrtiocbq;
8678 struct ulp_bde64 *bpl = NULL;
8679 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
8680 int numBdes, i;
8681 struct ulp_bde64 bde;
8682 struct lpfc_nodelist *ndlp;
8683 uint32_t *pcmd;
8684 uint32_t if_type;
8686 fip = phba->hba_flag & HBA_FIP_SUPPORT;
8687 /* The fcp commands will set command type */
8688 if (iocbq->iocb_flag & LPFC_IO_FCP)
8689 command_type = FCP_COMMAND;
8690 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
8691 command_type = ELS_COMMAND_FIP;
8692 else
8693 command_type = ELS_COMMAND_NON_FIP;
8695 if (phba->fcp_embed_io)
8696 memset(wqe, 0, sizeof(union lpfc_wqe128));
8697 /* Some of the fields are in the right position already */
8698 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
8699 if (iocbq->iocb.ulpCommand != CMD_SEND_FRAME) {
8700 /* The ct field has moved so reset */
8701 wqe->generic.wqe_com.word7 = 0;
8702 wqe->generic.wqe_com.word10 = 0;
8705 abort_tag = (uint32_t) iocbq->iotag;
8706 xritag = iocbq->sli4_xritag;
8707 /* words0-2 bpl convert bde */
8708 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8709 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8710 sizeof(struct ulp_bde64);
8711 bpl = (struct ulp_bde64 *)
8712 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
8713 if (!bpl)
8714 return IOCB_ERROR;
8716 /* Should already be byte swapped. */
8717 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
8718 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
8719 /* swap the size field back to the cpu so we
8720 * can assign it to the sgl.
8722 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
8723 xmit_len = wqe->generic.bde.tus.f.bdeSize;
8724 total_len = 0;
8725 for (i = 0; i < numBdes; i++) {
8726 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8727 total_len += bde.tus.f.bdeSize;
8729 } else
8730 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
8732 iocbq->iocb.ulpIoTag = iocbq->iotag;
8733 cmnd = iocbq->iocb.ulpCommand;
8735 switch (iocbq->iocb.ulpCommand) {
8736 case CMD_ELS_REQUEST64_CR:
8737 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
8738 ndlp = iocbq->context_un.ndlp;
8739 else
8740 ndlp = (struct lpfc_nodelist *)iocbq->context1;
8741 if (!iocbq->iocb.ulpLe) {
8742 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8743 "2007 Only Limited Edition cmd Format"
8744 " supported 0x%x\n",
8745 iocbq->iocb.ulpCommand);
8746 return IOCB_ERROR;
8749 wqe->els_req.payload_len = xmit_len;
8750 /* Els_reguest64 has a TMO */
8751 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
8752 iocbq->iocb.ulpTimeout);
8753 /* Need a VF for word 4 set the vf bit*/
8754 bf_set(els_req64_vf, &wqe->els_req, 0);
8755 /* And a VFID for word 12 */
8756 bf_set(els_req64_vfid, &wqe->els_req, 0);
8757 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8758 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8759 iocbq->iocb.ulpContext);
8760 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
8761 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
8762 /* CCP CCPE PV PRI in word10 were set in the memcpy */
8763 if (command_type == ELS_COMMAND_FIP)
8764 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
8765 >> LPFC_FIP_ELS_ID_SHIFT);
8766 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8767 iocbq->context2)->virt);
8768 if_type = bf_get(lpfc_sli_intf_if_type,
8769 &phba->sli4_hba.sli_intf);
8770 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8771 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
8772 *pcmd == ELS_CMD_SCR ||
8773 *pcmd == ELS_CMD_FDISC ||
8774 *pcmd == ELS_CMD_LOGO ||
8775 *pcmd == ELS_CMD_PLOGI)) {
8776 bf_set(els_req64_sp, &wqe->els_req, 1);
8777 bf_set(els_req64_sid, &wqe->els_req,
8778 iocbq->vport->fc_myDID);
8779 if ((*pcmd == ELS_CMD_FLOGI) &&
8780 !(phba->fc_topology ==
8781 LPFC_TOPOLOGY_LOOP))
8782 bf_set(els_req64_sid, &wqe->els_req, 0);
8783 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
8784 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8785 phba->vpi_ids[iocbq->vport->vpi]);
8786 } else if (pcmd && iocbq->context1) {
8787 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
8788 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8789 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8792 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
8793 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8794 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
8795 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
8796 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
8797 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
8798 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8799 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
8800 wqe->els_req.max_response_payload_len = total_len - xmit_len;
8801 break;
8802 case CMD_XMIT_SEQUENCE64_CX:
8803 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
8804 iocbq->iocb.un.ulpWord[3]);
8805 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
8806 iocbq->iocb.unsli3.rcvsli3.ox_id);
8807 /* The entire sequence is transmitted for this IOCB */
8808 xmit_len = total_len;
8809 cmnd = CMD_XMIT_SEQUENCE64_CR;
8810 if (phba->link_flag & LS_LOOPBACK_MODE)
8811 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
8812 case CMD_XMIT_SEQUENCE64_CR:
8813 /* word3 iocb=io_tag32 wqe=reserved */
8814 wqe->xmit_sequence.rsvd3 = 0;
8815 /* word4 relative_offset memcpy */
8816 /* word5 r_ctl/df_ctl memcpy */
8817 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
8818 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
8819 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
8820 LPFC_WQE_IOD_WRITE);
8821 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
8822 LPFC_WQE_LENLOC_WORD12);
8823 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
8824 wqe->xmit_sequence.xmit_len = xmit_len;
8825 command_type = OTHER_COMMAND;
8826 break;
8827 case CMD_XMIT_BCAST64_CN:
8828 /* word3 iocb=iotag32 wqe=seq_payload_len */
8829 wqe->xmit_bcast64.seq_payload_len = xmit_len;
8830 /* word4 iocb=rsvd wqe=rsvd */
8831 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
8832 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
8833 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
8834 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8835 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
8836 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
8837 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
8838 LPFC_WQE_LENLOC_WORD3);
8839 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
8840 break;
8841 case CMD_FCP_IWRITE64_CR:
8842 command_type = FCP_COMMAND_DATA_OUT;
8843 /* word3 iocb=iotag wqe=payload_offset_len */
8844 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8845 bf_set(payload_offset_len, &wqe->fcp_iwrite,
8846 xmit_len + sizeof(struct fcp_rsp));
8847 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
8849 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8850 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8851 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
8852 iocbq->iocb.ulpFCP2Rcvy);
8853 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
8854 /* Always open the exchange */
8855 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
8856 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
8857 LPFC_WQE_LENLOC_WORD4);
8858 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
8859 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
8860 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8861 bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
8862 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
8863 if (iocbq->priority) {
8864 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
8865 (iocbq->priority << 1));
8866 } else {
8867 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
8868 (phba->cfg_XLanePriority << 1));
8871 /* Note, word 10 is already initialized to 0 */
8873 if (phba->fcp_embed_io) {
8874 struct lpfc_scsi_buf *lpfc_cmd;
8875 struct sli4_sge *sgl;
8876 union lpfc_wqe128 *wqe128;
8877 struct fcp_cmnd *fcp_cmnd;
8878 uint32_t *ptr;
8880 /* 128 byte wqe support here */
8881 wqe128 = (union lpfc_wqe128 *)wqe;
8883 lpfc_cmd = iocbq->context1;
8884 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
8885 fcp_cmnd = lpfc_cmd->fcp_cmnd;
8887 /* Word 0-2 - FCP_CMND */
8888 wqe128->generic.bde.tus.f.bdeFlags =
8889 BUFF_TYPE_BDE_IMMED;
8890 wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len;
8891 wqe128->generic.bde.addrHigh = 0;
8892 wqe128->generic.bde.addrLow = 88; /* Word 22 */
8894 bf_set(wqe_wqes, &wqe128->fcp_iwrite.wqe_com, 1);
8896 /* Word 22-29 FCP CMND Payload */
8897 ptr = &wqe128->words[22];
8898 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
8900 break;
8901 case CMD_FCP_IREAD64_CR:
8902 /* word3 iocb=iotag wqe=payload_offset_len */
8903 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8904 bf_set(payload_offset_len, &wqe->fcp_iread,
8905 xmit_len + sizeof(struct fcp_rsp));
8906 bf_set(cmd_buff_len, &wqe->fcp_iread,
8908 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8909 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8910 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
8911 iocbq->iocb.ulpFCP2Rcvy);
8912 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
8913 /* Always open the exchange */
8914 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
8915 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
8916 LPFC_WQE_LENLOC_WORD4);
8917 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
8918 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
8919 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8920 bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
8921 bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
8922 if (iocbq->priority) {
8923 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
8924 (iocbq->priority << 1));
8925 } else {
8926 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
8927 (phba->cfg_XLanePriority << 1));
8930 /* Note, word 10 is already initialized to 0 */
8932 if (phba->fcp_embed_io) {
8933 struct lpfc_scsi_buf *lpfc_cmd;
8934 struct sli4_sge *sgl;
8935 union lpfc_wqe128 *wqe128;
8936 struct fcp_cmnd *fcp_cmnd;
8937 uint32_t *ptr;
8939 /* 128 byte wqe support here */
8940 wqe128 = (union lpfc_wqe128 *)wqe;
8942 lpfc_cmd = iocbq->context1;
8943 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
8944 fcp_cmnd = lpfc_cmd->fcp_cmnd;
8946 /* Word 0-2 - FCP_CMND */
8947 wqe128->generic.bde.tus.f.bdeFlags =
8948 BUFF_TYPE_BDE_IMMED;
8949 wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len;
8950 wqe128->generic.bde.addrHigh = 0;
8951 wqe128->generic.bde.addrLow = 88; /* Word 22 */
8953 bf_set(wqe_wqes, &wqe128->fcp_iread.wqe_com, 1);
8955 /* Word 22-29 FCP CMND Payload */
8956 ptr = &wqe128->words[22];
8957 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
8959 break;
8960 case CMD_FCP_ICMND64_CR:
8961 /* word3 iocb=iotag wqe=payload_offset_len */
8962 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8963 bf_set(payload_offset_len, &wqe->fcp_icmd,
8964 xmit_len + sizeof(struct fcp_rsp));
8965 bf_set(cmd_buff_len, &wqe->fcp_icmd,
8967 /* word3 iocb=IO_TAG wqe=reserved */
8968 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
8969 /* Always open the exchange */
8970 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
8971 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
8972 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
8973 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
8974 LPFC_WQE_LENLOC_NONE);
8975 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
8976 iocbq->iocb.ulpFCP2Rcvy);
8977 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8978 bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
8979 bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
8980 if (iocbq->priority) {
8981 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
8982 (iocbq->priority << 1));
8983 } else {
8984 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
8985 (phba->cfg_XLanePriority << 1));
8988 /* Note, word 10 is already initialized to 0 */
8990 if (phba->fcp_embed_io) {
8991 struct lpfc_scsi_buf *lpfc_cmd;
8992 struct sli4_sge *sgl;
8993 union lpfc_wqe128 *wqe128;
8994 struct fcp_cmnd *fcp_cmnd;
8995 uint32_t *ptr;
8997 /* 128 byte wqe support here */
8998 wqe128 = (union lpfc_wqe128 *)wqe;
9000 lpfc_cmd = iocbq->context1;
9001 sgl = (struct sli4_sge *)lpfc_cmd->fcp_bpl;
9002 fcp_cmnd = lpfc_cmd->fcp_cmnd;
9004 /* Word 0-2 - FCP_CMND */
9005 wqe128->generic.bde.tus.f.bdeFlags =
9006 BUFF_TYPE_BDE_IMMED;
9007 wqe128->generic.bde.tus.f.bdeSize = sgl->sge_len;
9008 wqe128->generic.bde.addrHigh = 0;
9009 wqe128->generic.bde.addrLow = 88; /* Word 22 */
9011 bf_set(wqe_wqes, &wqe128->fcp_icmd.wqe_com, 1);
9013 /* Word 22-29 FCP CMND Payload */
9014 ptr = &wqe128->words[22];
9015 memcpy(ptr, fcp_cmnd, sizeof(struct fcp_cmnd));
9017 break;
9018 case CMD_GEN_REQUEST64_CR:
9019 /* For this command calculate the xmit length of the
9020 * request bde.
9022 xmit_len = 0;
9023 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
9024 sizeof(struct ulp_bde64);
9025 for (i = 0; i < numBdes; i++) {
9026 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
9027 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
9028 break;
9029 xmit_len += bde.tus.f.bdeSize;
9031 /* word3 iocb=IO_TAG wqe=request_payload_len */
9032 wqe->gen_req.request_payload_len = xmit_len;
9033 /* word4 iocb=parameter wqe=relative_offset memcpy */
9034 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
9035 /* word6 context tag copied in memcpy */
9036 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
9037 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
9038 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9039 "2015 Invalid CT %x command 0x%x\n",
9040 ct, iocbq->iocb.ulpCommand);
9041 return IOCB_ERROR;
9043 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
9044 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
9045 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
9046 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
9047 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
9048 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
9049 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
9050 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
9051 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
9052 command_type = OTHER_COMMAND;
9053 break;
9054 case CMD_XMIT_ELS_RSP64_CX:
9055 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9056 /* words0-2 BDE memcpy */
9057 /* word3 iocb=iotag32 wqe=response_payload_len */
9058 wqe->xmit_els_rsp.response_payload_len = xmit_len;
9059 /* word4 */
9060 wqe->xmit_els_rsp.word4 = 0;
9061 /* word5 iocb=rsvd wge=did */
9062 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
9063 iocbq->iocb.un.xseq64.xmit_els_remoteID);
9065 if_type = bf_get(lpfc_sli_intf_if_type,
9066 &phba->sli4_hba.sli_intf);
9067 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
9068 if (iocbq->vport->fc_flag & FC_PT2PT) {
9069 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
9070 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
9071 iocbq->vport->fc_myDID);
9072 if (iocbq->vport->fc_myDID == Fabric_DID) {
9073 bf_set(wqe_els_did,
9074 &wqe->xmit_els_rsp.wqe_dest, 0);
9078 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
9079 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9080 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
9081 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
9082 iocbq->iocb.unsli3.rcvsli3.ox_id);
9083 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
9084 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
9085 phba->vpi_ids[iocbq->vport->vpi]);
9086 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
9087 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
9088 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
9089 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
9090 LPFC_WQE_LENLOC_WORD3);
9091 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
9092 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
9093 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
9094 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
9095 iocbq->context2)->virt);
9096 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
9097 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
9098 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
9099 iocbq->vport->fc_myDID);
9100 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
9101 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
9102 phba->vpi_ids[phba->pport->vpi]);
9104 command_type = OTHER_COMMAND;
9105 break;
9106 case CMD_CLOSE_XRI_CN:
9107 case CMD_ABORT_XRI_CN:
9108 case CMD_ABORT_XRI_CX:
9109 /* words 0-2 memcpy should be 0 rserved */
9110 /* port will send abts */
9111 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
9112 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
9113 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
9114 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
9115 } else
9116 fip = 0;
9118 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
9120 * The link is down, or the command was ELS_FIP
9121 * so the fw does not need to send abts
9122 * on the wire.
9124 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
9125 else
9126 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
9127 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
9128 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
9129 wqe->abort_cmd.rsrvd5 = 0;
9130 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
9131 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
9132 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
9134 * The abort handler will send us CMD_ABORT_XRI_CN or
9135 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
9137 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
9138 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
9139 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
9140 LPFC_WQE_LENLOC_NONE);
9141 cmnd = CMD_ABORT_XRI_CX;
9142 command_type = OTHER_COMMAND;
9143 xritag = 0;
9144 break;
9145 case CMD_XMIT_BLS_RSP64_CX:
9146 ndlp = (struct lpfc_nodelist *)iocbq->context1;
9147 /* As BLS ABTS RSP WQE is very different from other WQEs,
9148 * we re-construct this WQE here based on information in
9149 * iocbq from scratch.
9151 memset(wqe, 0, sizeof(union lpfc_wqe));
9152 /* OX_ID is invariable to who sent ABTS to CT exchange */
9153 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
9154 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
9155 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
9156 LPFC_ABTS_UNSOL_INT) {
9157 /* ABTS sent by initiator to CT exchange, the
9158 * RX_ID field will be filled with the newly
9159 * allocated responder XRI.
9161 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
9162 iocbq->sli4_xritag);
9163 } else {
9164 /* ABTS sent by responder to CT exchange, the
9165 * RX_ID field will be filled with the responder
9166 * RX_ID from ABTS.
9168 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
9169 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
9171 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
9172 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
9174 /* Use CT=VPI */
9175 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
9176 ndlp->nlp_DID);
9177 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
9178 iocbq->iocb.ulpContext);
9179 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
9180 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
9181 phba->vpi_ids[phba->pport->vpi]);
9182 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
9183 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
9184 LPFC_WQE_LENLOC_NONE);
9185 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
9186 command_type = OTHER_COMMAND;
9187 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
9188 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
9189 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
9190 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
9191 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
9192 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
9193 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
9196 break;
9197 case CMD_SEND_FRAME:
9198 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
9199 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
9200 return 0;
9201 case CMD_XRI_ABORTED_CX:
9202 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
9203 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
9204 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
9205 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
9206 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
9207 default:
9208 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9209 "2014 Invalid command 0x%x\n",
9210 iocbq->iocb.ulpCommand);
9211 return IOCB_ERROR;
9212 break;
9215 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
9216 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
9217 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
9218 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
9219 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
9220 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
9221 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
9222 LPFC_IO_DIF_INSERT);
9223 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
9224 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
9225 wqe->generic.wqe_com.abort_tag = abort_tag;
9226 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
9227 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
9228 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
9229 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
9230 return 0;
9234 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
9235 * @phba: Pointer to HBA context object.
9236 * @ring_number: SLI ring number to issue iocb on.
9237 * @piocb: Pointer to command iocb.
9238 * @flag: Flag indicating if this command can be put into txq.
9240 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
9241 * an iocb command to an HBA with SLI-4 interface spec.
9243 * This function is called with hbalock held. The function will return success
9244 * after it successfully submit the iocb to firmware or after adding to the
9245 * txq.
9247 static int
9248 __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
9249 struct lpfc_iocbq *piocb, uint32_t flag)
9251 struct lpfc_sglq *sglq;
9252 union lpfc_wqe *wqe;
9253 union lpfc_wqe128 wqe128;
9254 struct lpfc_queue *wq;
9255 struct lpfc_sli_ring *pring;
9257 /* Get the WQ */
9258 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
9259 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
9260 if (!phba->cfg_fof || (!(piocb->iocb_flag & LPFC_IO_OAS)))
9261 wq = phba->sli4_hba.fcp_wq[piocb->hba_wqidx];
9262 else
9263 wq = phba->sli4_hba.oas_wq;
9264 } else {
9265 wq = phba->sli4_hba.els_wq;
9268 /* Get corresponding ring */
9269 pring = wq->pring;
9272 * The WQE can be either 64 or 128 bytes,
9273 * so allocate space on the stack assuming the largest.
9275 wqe = (union lpfc_wqe *)&wqe128;
9277 lockdep_assert_held(&phba->hbalock);
9279 if (piocb->sli4_xritag == NO_XRI) {
9280 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
9281 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
9282 sglq = NULL;
9283 else {
9284 if (!list_empty(&pring->txq)) {
9285 if (!(flag & SLI_IOCB_RET_IOCB)) {
9286 __lpfc_sli_ringtx_put(phba,
9287 pring, piocb);
9288 return IOCB_SUCCESS;
9289 } else {
9290 return IOCB_BUSY;
9292 } else {
9293 sglq = __lpfc_sli_get_els_sglq(phba, piocb);
9294 if (!sglq) {
9295 if (!(flag & SLI_IOCB_RET_IOCB)) {
9296 __lpfc_sli_ringtx_put(phba,
9297 pring,
9298 piocb);
9299 return IOCB_SUCCESS;
9300 } else
9301 return IOCB_BUSY;
9305 } else if (piocb->iocb_flag & LPFC_IO_FCP)
9306 /* These IO's already have an XRI and a mapped sgl. */
9307 sglq = NULL;
9308 else {
9310 * This is a continuation of a commandi,(CX) so this
9311 * sglq is on the active list
9313 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
9314 if (!sglq)
9315 return IOCB_ERROR;
9318 if (sglq) {
9319 piocb->sli4_lxritag = sglq->sli4_lxritag;
9320 piocb->sli4_xritag = sglq->sli4_xritag;
9321 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
9322 return IOCB_ERROR;
9325 if (lpfc_sli4_iocb2wqe(phba, piocb, wqe))
9326 return IOCB_ERROR;
9328 if (lpfc_sli4_wq_put(wq, wqe))
9329 return IOCB_ERROR;
9330 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
9332 return 0;
9336 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
9338 * This routine wraps the actual lockless version for issusing IOCB function
9339 * pointer from the lpfc_hba struct.
9341 * Return codes:
9342 * IOCB_ERROR - Error
9343 * IOCB_SUCCESS - Success
9344 * IOCB_BUSY - Busy
9347 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
9348 struct lpfc_iocbq *piocb, uint32_t flag)
9350 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
9354 * lpfc_sli_api_table_setup - Set up sli api function jump table
9355 * @phba: The hba struct for which this call is being executed.
9356 * @dev_grp: The HBA PCI-Device group number.
9358 * This routine sets up the SLI interface API function jump table in @phba
9359 * struct.
9360 * Returns: 0 - success, -ENODEV - failure.
9363 lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
9366 switch (dev_grp) {
9367 case LPFC_PCI_DEV_LP:
9368 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
9369 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
9370 break;
9371 case LPFC_PCI_DEV_OC:
9372 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
9373 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
9374 break;
9375 default:
9376 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9377 "1419 Invalid HBA PCI-device group: 0x%x\n",
9378 dev_grp);
9379 return -ENODEV;
9380 break;
9382 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
9383 return 0;
9387 * lpfc_sli4_calc_ring - Calculates which ring to use
9388 * @phba: Pointer to HBA context object.
9389 * @piocb: Pointer to command iocb.
9391 * For SLI4 only, FCP IO can deferred to one fo many WQs, based on
9392 * hba_wqidx, thus we need to calculate the corresponding ring.
9393 * Since ABORTS must go on the same WQ of the command they are
9394 * aborting, we use command's hba_wqidx.
9396 struct lpfc_sli_ring *
9397 lpfc_sli4_calc_ring(struct lpfc_hba *phba, struct lpfc_iocbq *piocb)
9399 if (piocb->iocb_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
9400 if (!(phba->cfg_fof) ||
9401 (!(piocb->iocb_flag & LPFC_IO_FOF))) {
9402 if (unlikely(!phba->sli4_hba.fcp_wq))
9403 return NULL;
9405 * for abort iocb hba_wqidx should already
9406 * be setup based on what work queue we used.
9408 if (!(piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
9409 piocb->hba_wqidx =
9410 lpfc_sli4_scmd_to_wqidx_distr(phba,
9411 piocb->context1);
9412 piocb->hba_wqidx = piocb->hba_wqidx %
9413 phba->cfg_fcp_io_channel;
9415 return phba->sli4_hba.fcp_wq[piocb->hba_wqidx]->pring;
9416 } else {
9417 if (unlikely(!phba->sli4_hba.oas_wq))
9418 return NULL;
9419 piocb->hba_wqidx = 0;
9420 return phba->sli4_hba.oas_wq->pring;
9422 } else {
9423 if (unlikely(!phba->sli4_hba.els_wq))
9424 return NULL;
9425 piocb->hba_wqidx = 0;
9426 return phba->sli4_hba.els_wq->pring;
9431 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
9432 * @phba: Pointer to HBA context object.
9433 * @pring: Pointer to driver SLI ring object.
9434 * @piocb: Pointer to command iocb.
9435 * @flag: Flag indicating if this command can be put into txq.
9437 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
9438 * function. This function gets the hbalock and calls
9439 * __lpfc_sli_issue_iocb function and will return the error returned
9440 * by __lpfc_sli_issue_iocb function. This wrapper is used by
9441 * functions which do not hold hbalock.
9444 lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
9445 struct lpfc_iocbq *piocb, uint32_t flag)
9447 struct lpfc_hba_eq_hdl *hba_eq_hdl;
9448 struct lpfc_sli_ring *pring;
9449 struct lpfc_queue *fpeq;
9450 struct lpfc_eqe *eqe;
9451 unsigned long iflags;
9452 int rc, idx;
9454 if (phba->sli_rev == LPFC_SLI_REV4) {
9455 pring = lpfc_sli4_calc_ring(phba, piocb);
9456 if (unlikely(pring == NULL))
9457 return IOCB_ERROR;
9459 spin_lock_irqsave(&pring->ring_lock, iflags);
9460 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
9461 spin_unlock_irqrestore(&pring->ring_lock, iflags);
9463 if (lpfc_fcp_look_ahead && (piocb->iocb_flag & LPFC_IO_FCP)) {
9464 idx = piocb->hba_wqidx;
9465 hba_eq_hdl = &phba->sli4_hba.hba_eq_hdl[idx];
9467 if (atomic_dec_and_test(&hba_eq_hdl->hba_eq_in_use)) {
9469 /* Get associated EQ with this index */
9470 fpeq = phba->sli4_hba.hba_eq[idx];
9472 /* Turn off interrupts from this EQ */
9473 lpfc_sli4_eq_clr_intr(fpeq);
9476 * Process all the events on FCP EQ
9478 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
9479 lpfc_sli4_hba_handle_eqe(phba,
9480 eqe, idx);
9481 fpeq->EQ_processed++;
9484 /* Always clear and re-arm the EQ */
9485 lpfc_sli4_eq_release(fpeq,
9486 LPFC_QUEUE_REARM);
9488 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
9490 } else {
9491 /* For now, SLI2/3 will still use hbalock */
9492 spin_lock_irqsave(&phba->hbalock, iflags);
9493 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
9494 spin_unlock_irqrestore(&phba->hbalock, iflags);
9496 return rc;
9500 * lpfc_extra_ring_setup - Extra ring setup function
9501 * @phba: Pointer to HBA context object.
9503 * This function is called while driver attaches with the
9504 * HBA to setup the extra ring. The extra ring is used
9505 * only when driver needs to support target mode functionality
9506 * or IP over FC functionalities.
9508 * This function is called with no lock held. SLI3 only.
9510 static int
9511 lpfc_extra_ring_setup( struct lpfc_hba *phba)
9513 struct lpfc_sli *psli;
9514 struct lpfc_sli_ring *pring;
9516 psli = &phba->sli;
9518 /* Adjust cmd/rsp ring iocb entries more evenly */
9520 /* Take some away from the FCP ring */
9521 pring = &psli->sli3_ring[LPFC_FCP_RING];
9522 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9523 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9524 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9525 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
9527 /* and give them to the extra ring */
9528 pring = &psli->sli3_ring[LPFC_EXTRA_RING];
9530 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9531 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9532 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9533 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
9535 /* Setup default profile for this ring */
9536 pring->iotag_max = 4096;
9537 pring->num_mask = 1;
9538 pring->prt[0].profile = 0; /* Mask 0 */
9539 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
9540 pring->prt[0].type = phba->cfg_multi_ring_type;
9541 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
9542 return 0;
9545 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
9546 * @phba: Pointer to HBA context object.
9547 * @iocbq: Pointer to iocb object.
9549 * The async_event handler calls this routine when it receives
9550 * an ASYNC_STATUS_CN event from the port. The port generates
9551 * this event when an Abort Sequence request to an rport fails
9552 * twice in succession. The abort could be originated by the
9553 * driver or by the port. The ABTS could have been for an ELS
9554 * or FCP IO. The port only generates this event when an ABTS
9555 * fails to complete after one retry.
9557 static void
9558 lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
9559 struct lpfc_iocbq *iocbq)
9561 struct lpfc_nodelist *ndlp = NULL;
9562 uint16_t rpi = 0, vpi = 0;
9563 struct lpfc_vport *vport = NULL;
9565 /* The rpi in the ulpContext is vport-sensitive. */
9566 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
9567 rpi = iocbq->iocb.ulpContext;
9569 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9570 "3092 Port generated ABTS async event "
9571 "on vpi %d rpi %d status 0x%x\n",
9572 vpi, rpi, iocbq->iocb.ulpStatus);
9574 vport = lpfc_find_vport_by_vpid(phba, vpi);
9575 if (!vport)
9576 goto err_exit;
9577 ndlp = lpfc_findnode_rpi(vport, rpi);
9578 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
9579 goto err_exit;
9581 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
9582 lpfc_sli_abts_recover_port(vport, ndlp);
9583 return;
9585 err_exit:
9586 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9587 "3095 Event Context not found, no "
9588 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
9589 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
9590 vpi, rpi);
9593 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
9594 * @phba: pointer to HBA context object.
9595 * @ndlp: nodelist pointer for the impacted rport.
9596 * @axri: pointer to the wcqe containing the failed exchange.
9598 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
9599 * port. The port generates this event when an abort exchange request to an
9600 * rport fails twice in succession with no reply. The abort could be originated
9601 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
9603 void
9604 lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
9605 struct lpfc_nodelist *ndlp,
9606 struct sli4_wcqe_xri_aborted *axri)
9608 struct lpfc_vport *vport;
9609 uint32_t ext_status = 0;
9611 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
9612 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9613 "3115 Node Context not found, driver "
9614 "ignoring abts err event\n");
9615 return;
9618 vport = ndlp->vport;
9619 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9620 "3116 Port generated FCP XRI ABORT event on "
9621 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
9622 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
9623 bf_get(lpfc_wcqe_xa_xri, axri),
9624 bf_get(lpfc_wcqe_xa_status, axri),
9625 axri->parameter);
9628 * Catch the ABTS protocol failure case. Older OCe FW releases returned
9629 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
9630 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
9632 ext_status = axri->parameter & IOERR_PARAM_MASK;
9633 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
9634 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
9635 lpfc_sli_abts_recover_port(vport, ndlp);
9639 * lpfc_sli_async_event_handler - ASYNC iocb handler function
9640 * @phba: Pointer to HBA context object.
9641 * @pring: Pointer to driver SLI ring object.
9642 * @iocbq: Pointer to iocb object.
9644 * This function is called by the slow ring event handler
9645 * function when there is an ASYNC event iocb in the ring.
9646 * This function is called with no lock held.
9647 * Currently this function handles only temperature related
9648 * ASYNC events. The function decodes the temperature sensor
9649 * event message and posts events for the management applications.
9651 static void
9652 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
9653 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
9655 IOCB_t *icmd;
9656 uint16_t evt_code;
9657 struct temp_event temp_event_data;
9658 struct Scsi_Host *shost;
9659 uint32_t *iocb_w;
9661 icmd = &iocbq->iocb;
9662 evt_code = icmd->un.asyncstat.evt_code;
9664 switch (evt_code) {
9665 case ASYNC_TEMP_WARN:
9666 case ASYNC_TEMP_SAFE:
9667 temp_event_data.data = (uint32_t) icmd->ulpContext;
9668 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
9669 if (evt_code == ASYNC_TEMP_WARN) {
9670 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
9671 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9672 "0347 Adapter is very hot, please take "
9673 "corrective action. temperature : %d Celsius\n",
9674 (uint32_t) icmd->ulpContext);
9675 } else {
9676 temp_event_data.event_code = LPFC_NORMAL_TEMP;
9677 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9678 "0340 Adapter temperature is OK now. "
9679 "temperature : %d Celsius\n",
9680 (uint32_t) icmd->ulpContext);
9683 /* Send temperature change event to applications */
9684 shost = lpfc_shost_from_vport(phba->pport);
9685 fc_host_post_vendor_event(shost, fc_get_event_number(),
9686 sizeof(temp_event_data), (char *) &temp_event_data,
9687 LPFC_NL_VENDOR_ID);
9688 break;
9689 case ASYNC_STATUS_CN:
9690 lpfc_sli_abts_err_handler(phba, iocbq);
9691 break;
9692 default:
9693 iocb_w = (uint32_t *) icmd;
9694 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9695 "0346 Ring %d handler: unexpected ASYNC_STATUS"
9696 " evt_code 0x%x\n"
9697 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
9698 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
9699 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
9700 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
9701 pring->ringno, icmd->un.asyncstat.evt_code,
9702 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
9703 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
9704 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
9705 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
9707 break;
9713 * lpfc_sli4_setup - SLI ring setup function
9714 * @phba: Pointer to HBA context object.
9716 * lpfc_sli_setup sets up rings of the SLI interface with
9717 * number of iocbs per ring and iotags. This function is
9718 * called while driver attach to the HBA and before the
9719 * interrupts are enabled. So there is no need for locking.
9721 * This function always returns 0.
9724 lpfc_sli4_setup(struct lpfc_hba *phba)
9726 struct lpfc_sli_ring *pring;
9728 pring = phba->sli4_hba.els_wq->pring;
9729 pring->num_mask = LPFC_MAX_RING_MASK;
9730 pring->prt[0].profile = 0; /* Mask 0 */
9731 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
9732 pring->prt[0].type = FC_TYPE_ELS;
9733 pring->prt[0].lpfc_sli_rcv_unsol_event =
9734 lpfc_els_unsol_event;
9735 pring->prt[1].profile = 0; /* Mask 1 */
9736 pring->prt[1].rctl = FC_RCTL_ELS_REP;
9737 pring->prt[1].type = FC_TYPE_ELS;
9738 pring->prt[1].lpfc_sli_rcv_unsol_event =
9739 lpfc_els_unsol_event;
9740 pring->prt[2].profile = 0; /* Mask 2 */
9741 /* NameServer Inquiry */
9742 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
9743 /* NameServer */
9744 pring->prt[2].type = FC_TYPE_CT;
9745 pring->prt[2].lpfc_sli_rcv_unsol_event =
9746 lpfc_ct_unsol_event;
9747 pring->prt[3].profile = 0; /* Mask 3 */
9748 /* NameServer response */
9749 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
9750 /* NameServer */
9751 pring->prt[3].type = FC_TYPE_CT;
9752 pring->prt[3].lpfc_sli_rcv_unsol_event =
9753 lpfc_ct_unsol_event;
9754 return 0;
9758 * lpfc_sli_setup - SLI ring setup function
9759 * @phba: Pointer to HBA context object.
9761 * lpfc_sli_setup sets up rings of the SLI interface with
9762 * number of iocbs per ring and iotags. This function is
9763 * called while driver attach to the HBA and before the
9764 * interrupts are enabled. So there is no need for locking.
9766 * This function always returns 0. SLI3 only.
9769 lpfc_sli_setup(struct lpfc_hba *phba)
9771 int i, totiocbsize = 0;
9772 struct lpfc_sli *psli = &phba->sli;
9773 struct lpfc_sli_ring *pring;
9775 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
9776 psli->sli_flag = 0;
9778 psli->iocbq_lookup = NULL;
9779 psli->iocbq_lookup_len = 0;
9780 psli->last_iotag = 0;
9782 for (i = 0; i < psli->num_rings; i++) {
9783 pring = &psli->sli3_ring[i];
9784 switch (i) {
9785 case LPFC_FCP_RING: /* ring 0 - FCP */
9786 /* numCiocb and numRiocb are used in config_port */
9787 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
9788 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
9789 pring->sli.sli3.numCiocb +=
9790 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9791 pring->sli.sli3.numRiocb +=
9792 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9793 pring->sli.sli3.numCiocb +=
9794 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9795 pring->sli.sli3.numRiocb +=
9796 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
9797 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9798 SLI3_IOCB_CMD_SIZE :
9799 SLI2_IOCB_CMD_SIZE;
9800 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9801 SLI3_IOCB_RSP_SIZE :
9802 SLI2_IOCB_RSP_SIZE;
9803 pring->iotag_ctr = 0;
9804 pring->iotag_max =
9805 (phba->cfg_hba_queue_depth * 2);
9806 pring->fast_iotag = pring->iotag_max;
9807 pring->num_mask = 0;
9808 break;
9809 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
9810 /* numCiocb and numRiocb are used in config_port */
9811 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
9812 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
9813 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9814 SLI3_IOCB_CMD_SIZE :
9815 SLI2_IOCB_CMD_SIZE;
9816 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9817 SLI3_IOCB_RSP_SIZE :
9818 SLI2_IOCB_RSP_SIZE;
9819 pring->iotag_max = phba->cfg_hba_queue_depth;
9820 pring->num_mask = 0;
9821 break;
9822 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
9823 /* numCiocb and numRiocb are used in config_port */
9824 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
9825 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
9826 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
9827 SLI3_IOCB_CMD_SIZE :
9828 SLI2_IOCB_CMD_SIZE;
9829 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
9830 SLI3_IOCB_RSP_SIZE :
9831 SLI2_IOCB_RSP_SIZE;
9832 pring->fast_iotag = 0;
9833 pring->iotag_ctr = 0;
9834 pring->iotag_max = 4096;
9835 pring->lpfc_sli_rcv_async_status =
9836 lpfc_sli_async_event_handler;
9837 pring->num_mask = LPFC_MAX_RING_MASK;
9838 pring->prt[0].profile = 0; /* Mask 0 */
9839 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
9840 pring->prt[0].type = FC_TYPE_ELS;
9841 pring->prt[0].lpfc_sli_rcv_unsol_event =
9842 lpfc_els_unsol_event;
9843 pring->prt[1].profile = 0; /* Mask 1 */
9844 pring->prt[1].rctl = FC_RCTL_ELS_REP;
9845 pring->prt[1].type = FC_TYPE_ELS;
9846 pring->prt[1].lpfc_sli_rcv_unsol_event =
9847 lpfc_els_unsol_event;
9848 pring->prt[2].profile = 0; /* Mask 2 */
9849 /* NameServer Inquiry */
9850 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
9851 /* NameServer */
9852 pring->prt[2].type = FC_TYPE_CT;
9853 pring->prt[2].lpfc_sli_rcv_unsol_event =
9854 lpfc_ct_unsol_event;
9855 pring->prt[3].profile = 0; /* Mask 3 */
9856 /* NameServer response */
9857 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
9858 /* NameServer */
9859 pring->prt[3].type = FC_TYPE_CT;
9860 pring->prt[3].lpfc_sli_rcv_unsol_event =
9861 lpfc_ct_unsol_event;
9862 break;
9864 totiocbsize += (pring->sli.sli3.numCiocb *
9865 pring->sli.sli3.sizeCiocb) +
9866 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
9868 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
9869 /* Too many cmd / rsp ring entries in SLI2 SLIM */
9870 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
9871 "SLI2 SLIM Data: x%x x%lx\n",
9872 phba->brd_no, totiocbsize,
9873 (unsigned long) MAX_SLIM_IOCB_SIZE);
9875 if (phba->cfg_multi_ring_support == 2)
9876 lpfc_extra_ring_setup(phba);
9878 return 0;
9882 * lpfc_sli4_queue_init - Queue initialization function
9883 * @phba: Pointer to HBA context object.
9885 * lpfc_sli4_queue_init sets up mailbox queues and iocb queues for each
9886 * ring. This function also initializes ring indices of each ring.
9887 * This function is called during the initialization of the SLI
9888 * interface of an HBA.
9889 * This function is called with no lock held and always returns
9890 * 1.
9892 void
9893 lpfc_sli4_queue_init(struct lpfc_hba *phba)
9895 struct lpfc_sli *psli;
9896 struct lpfc_sli_ring *pring;
9897 int i;
9899 psli = &phba->sli;
9900 spin_lock_irq(&phba->hbalock);
9901 INIT_LIST_HEAD(&psli->mboxq);
9902 INIT_LIST_HEAD(&psli->mboxq_cmpl);
9903 /* Initialize list headers for txq and txcmplq as double linked lists */
9904 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
9905 pring = phba->sli4_hba.fcp_wq[i]->pring;
9906 pring->flag = 0;
9907 pring->ringno = LPFC_FCP_RING;
9908 INIT_LIST_HEAD(&pring->txq);
9909 INIT_LIST_HEAD(&pring->txcmplq);
9910 INIT_LIST_HEAD(&pring->iocb_continueq);
9911 spin_lock_init(&pring->ring_lock);
9913 for (i = 0; i < phba->cfg_nvme_io_channel; i++) {
9914 pring = phba->sli4_hba.nvme_wq[i]->pring;
9915 pring->flag = 0;
9916 pring->ringno = LPFC_FCP_RING;
9917 INIT_LIST_HEAD(&pring->txq);
9918 INIT_LIST_HEAD(&pring->txcmplq);
9919 INIT_LIST_HEAD(&pring->iocb_continueq);
9920 spin_lock_init(&pring->ring_lock);
9922 pring = phba->sli4_hba.els_wq->pring;
9923 pring->flag = 0;
9924 pring->ringno = LPFC_ELS_RING;
9925 INIT_LIST_HEAD(&pring->txq);
9926 INIT_LIST_HEAD(&pring->txcmplq);
9927 INIT_LIST_HEAD(&pring->iocb_continueq);
9928 spin_lock_init(&pring->ring_lock);
9930 if (phba->cfg_nvme_io_channel) {
9931 pring = phba->sli4_hba.nvmels_wq->pring;
9932 pring->flag = 0;
9933 pring->ringno = LPFC_ELS_RING;
9934 INIT_LIST_HEAD(&pring->txq);
9935 INIT_LIST_HEAD(&pring->txcmplq);
9936 INIT_LIST_HEAD(&pring->iocb_continueq);
9937 spin_lock_init(&pring->ring_lock);
9940 if (phba->cfg_fof) {
9941 pring = phba->sli4_hba.oas_wq->pring;
9942 pring->flag = 0;
9943 pring->ringno = LPFC_FCP_RING;
9944 INIT_LIST_HEAD(&pring->txq);
9945 INIT_LIST_HEAD(&pring->txcmplq);
9946 INIT_LIST_HEAD(&pring->iocb_continueq);
9947 spin_lock_init(&pring->ring_lock);
9950 spin_unlock_irq(&phba->hbalock);
9954 * lpfc_sli_queue_init - Queue initialization function
9955 * @phba: Pointer to HBA context object.
9957 * lpfc_sli_queue_init sets up mailbox queues and iocb queues for each
9958 * ring. This function also initializes ring indices of each ring.
9959 * This function is called during the initialization of the SLI
9960 * interface of an HBA.
9961 * This function is called with no lock held and always returns
9962 * 1.
9964 void
9965 lpfc_sli_queue_init(struct lpfc_hba *phba)
9967 struct lpfc_sli *psli;
9968 struct lpfc_sli_ring *pring;
9969 int i;
9971 psli = &phba->sli;
9972 spin_lock_irq(&phba->hbalock);
9973 INIT_LIST_HEAD(&psli->mboxq);
9974 INIT_LIST_HEAD(&psli->mboxq_cmpl);
9975 /* Initialize list headers for txq and txcmplq as double linked lists */
9976 for (i = 0; i < psli->num_rings; i++) {
9977 pring = &psli->sli3_ring[i];
9978 pring->ringno = i;
9979 pring->sli.sli3.next_cmdidx = 0;
9980 pring->sli.sli3.local_getidx = 0;
9981 pring->sli.sli3.cmdidx = 0;
9982 INIT_LIST_HEAD(&pring->iocb_continueq);
9983 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
9984 INIT_LIST_HEAD(&pring->postbufq);
9985 pring->flag = 0;
9986 INIT_LIST_HEAD(&pring->txq);
9987 INIT_LIST_HEAD(&pring->txcmplq);
9988 spin_lock_init(&pring->ring_lock);
9990 spin_unlock_irq(&phba->hbalock);
9994 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
9995 * @phba: Pointer to HBA context object.
9997 * This routine flushes the mailbox command subsystem. It will unconditionally
9998 * flush all the mailbox commands in the three possible stages in the mailbox
9999 * command sub-system: pending mailbox command queue; the outstanding mailbox
10000 * command; and completed mailbox command queue. It is caller's responsibility
10001 * to make sure that the driver is in the proper state to flush the mailbox
10002 * command sub-system. Namely, the posting of mailbox commands into the
10003 * pending mailbox command queue from the various clients must be stopped;
10004 * either the HBA is in a state that it will never works on the outstanding
10005 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
10006 * mailbox command has been completed.
10008 static void
10009 lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
10011 LIST_HEAD(completions);
10012 struct lpfc_sli *psli = &phba->sli;
10013 LPFC_MBOXQ_t *pmb;
10014 unsigned long iflag;
10016 /* Flush all the mailbox commands in the mbox system */
10017 spin_lock_irqsave(&phba->hbalock, iflag);
10018 /* The pending mailbox command queue */
10019 list_splice_init(&phba->sli.mboxq, &completions);
10020 /* The outstanding active mailbox command */
10021 if (psli->mbox_active) {
10022 list_add_tail(&psli->mbox_active->list, &completions);
10023 psli->mbox_active = NULL;
10024 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10026 /* The completed mailbox command queue */
10027 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
10028 spin_unlock_irqrestore(&phba->hbalock, iflag);
10030 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
10031 while (!list_empty(&completions)) {
10032 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
10033 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
10034 if (pmb->mbox_cmpl)
10035 pmb->mbox_cmpl(phba, pmb);
10040 * lpfc_sli_host_down - Vport cleanup function
10041 * @vport: Pointer to virtual port object.
10043 * lpfc_sli_host_down is called to clean up the resources
10044 * associated with a vport before destroying virtual
10045 * port data structures.
10046 * This function does following operations:
10047 * - Free discovery resources associated with this virtual
10048 * port.
10049 * - Free iocbs associated with this virtual port in
10050 * the txq.
10051 * - Send abort for all iocb commands associated with this
10052 * vport in txcmplq.
10054 * This function is called with no lock held and always returns 1.
10057 lpfc_sli_host_down(struct lpfc_vport *vport)
10059 LIST_HEAD(completions);
10060 struct lpfc_hba *phba = vport->phba;
10061 struct lpfc_sli *psli = &phba->sli;
10062 struct lpfc_queue *qp = NULL;
10063 struct lpfc_sli_ring *pring;
10064 struct lpfc_iocbq *iocb, *next_iocb;
10065 int i;
10066 unsigned long flags = 0;
10067 uint16_t prev_pring_flag;
10069 lpfc_cleanup_discovery_resources(vport);
10071 spin_lock_irqsave(&phba->hbalock, flags);
10074 * Error everything on the txq since these iocbs
10075 * have not been given to the FW yet.
10076 * Also issue ABTS for everything on the txcmplq
10078 if (phba->sli_rev != LPFC_SLI_REV4) {
10079 for (i = 0; i < psli->num_rings; i++) {
10080 pring = &psli->sli3_ring[i];
10081 prev_pring_flag = pring->flag;
10082 /* Only slow rings */
10083 if (pring->ringno == LPFC_ELS_RING) {
10084 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10085 /* Set the lpfc data pending flag */
10086 set_bit(LPFC_DATA_READY, &phba->data_flags);
10088 list_for_each_entry_safe(iocb, next_iocb,
10089 &pring->txq, list) {
10090 if (iocb->vport != vport)
10091 continue;
10092 list_move_tail(&iocb->list, &completions);
10094 list_for_each_entry_safe(iocb, next_iocb,
10095 &pring->txcmplq, list) {
10096 if (iocb->vport != vport)
10097 continue;
10098 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10100 pring->flag = prev_pring_flag;
10102 } else {
10103 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10104 pring = qp->pring;
10105 if (!pring)
10106 continue;
10107 if (pring == phba->sli4_hba.els_wq->pring) {
10108 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10109 /* Set the lpfc data pending flag */
10110 set_bit(LPFC_DATA_READY, &phba->data_flags);
10112 prev_pring_flag = pring->flag;
10113 spin_lock_irq(&pring->ring_lock);
10114 list_for_each_entry_safe(iocb, next_iocb,
10115 &pring->txq, list) {
10116 if (iocb->vport != vport)
10117 continue;
10118 list_move_tail(&iocb->list, &completions);
10120 spin_unlock_irq(&pring->ring_lock);
10121 list_for_each_entry_safe(iocb, next_iocb,
10122 &pring->txcmplq, list) {
10123 if (iocb->vport != vport)
10124 continue;
10125 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
10127 pring->flag = prev_pring_flag;
10130 spin_unlock_irqrestore(&phba->hbalock, flags);
10132 /* Cancel all the IOCBs from the completions list */
10133 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10134 IOERR_SLI_DOWN);
10135 return 1;
10139 * lpfc_sli_hba_down - Resource cleanup function for the HBA
10140 * @phba: Pointer to HBA context object.
10142 * This function cleans up all iocb, buffers, mailbox commands
10143 * while shutting down the HBA. This function is called with no
10144 * lock held and always returns 1.
10145 * This function does the following to cleanup driver resources:
10146 * - Free discovery resources for each virtual port
10147 * - Cleanup any pending fabric iocbs
10148 * - Iterate through the iocb txq and free each entry
10149 * in the list.
10150 * - Free up any buffer posted to the HBA
10151 * - Free mailbox commands in the mailbox queue.
10154 lpfc_sli_hba_down(struct lpfc_hba *phba)
10156 LIST_HEAD(completions);
10157 struct lpfc_sli *psli = &phba->sli;
10158 struct lpfc_queue *qp = NULL;
10159 struct lpfc_sli_ring *pring;
10160 struct lpfc_dmabuf *buf_ptr;
10161 unsigned long flags = 0;
10162 int i;
10164 /* Shutdown the mailbox command sub-system */
10165 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
10167 lpfc_hba_down_prep(phba);
10169 lpfc_fabric_abort_hba(phba);
10171 spin_lock_irqsave(&phba->hbalock, flags);
10174 * Error everything on the txq since these iocbs
10175 * have not been given to the FW yet.
10177 if (phba->sli_rev != LPFC_SLI_REV4) {
10178 for (i = 0; i < psli->num_rings; i++) {
10179 pring = &psli->sli3_ring[i];
10180 /* Only slow rings */
10181 if (pring->ringno == LPFC_ELS_RING) {
10182 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10183 /* Set the lpfc data pending flag */
10184 set_bit(LPFC_DATA_READY, &phba->data_flags);
10186 list_splice_init(&pring->txq, &completions);
10188 } else {
10189 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10190 pring = qp->pring;
10191 if (!pring)
10192 continue;
10193 spin_lock_irq(&pring->ring_lock);
10194 list_splice_init(&pring->txq, &completions);
10195 spin_unlock_irq(&pring->ring_lock);
10196 if (pring == phba->sli4_hba.els_wq->pring) {
10197 pring->flag |= LPFC_DEFERRED_RING_EVENT;
10198 /* Set the lpfc data pending flag */
10199 set_bit(LPFC_DATA_READY, &phba->data_flags);
10203 spin_unlock_irqrestore(&phba->hbalock, flags);
10205 /* Cancel all the IOCBs from the completions list */
10206 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
10207 IOERR_SLI_DOWN);
10209 spin_lock_irqsave(&phba->hbalock, flags);
10210 list_splice_init(&phba->elsbuf, &completions);
10211 phba->elsbuf_cnt = 0;
10212 phba->elsbuf_prev_cnt = 0;
10213 spin_unlock_irqrestore(&phba->hbalock, flags);
10215 while (!list_empty(&completions)) {
10216 list_remove_head(&completions, buf_ptr,
10217 struct lpfc_dmabuf, list);
10218 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
10219 kfree(buf_ptr);
10222 /* Return any active mbox cmds */
10223 del_timer_sync(&psli->mbox_tmo);
10225 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
10226 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
10227 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
10229 return 1;
10233 * lpfc_sli_pcimem_bcopy - SLI memory copy function
10234 * @srcp: Source memory pointer.
10235 * @destp: Destination memory pointer.
10236 * @cnt: Number of words required to be copied.
10238 * This function is used for copying data between driver memory
10239 * and the SLI memory. This function also changes the endianness
10240 * of each word if native endianness is different from SLI
10241 * endianness. This function can be called with or without
10242 * lock.
10244 void
10245 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
10247 uint32_t *src = srcp;
10248 uint32_t *dest = destp;
10249 uint32_t ldata;
10250 int i;
10252 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
10253 ldata = *src;
10254 ldata = le32_to_cpu(ldata);
10255 *dest = ldata;
10256 src++;
10257 dest++;
10263 * lpfc_sli_bemem_bcopy - SLI memory copy function
10264 * @srcp: Source memory pointer.
10265 * @destp: Destination memory pointer.
10266 * @cnt: Number of words required to be copied.
10268 * This function is used for copying data between a data structure
10269 * with big endian representation to local endianness.
10270 * This function can be called with or without lock.
10272 void
10273 lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
10275 uint32_t *src = srcp;
10276 uint32_t *dest = destp;
10277 uint32_t ldata;
10278 int i;
10280 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
10281 ldata = *src;
10282 ldata = be32_to_cpu(ldata);
10283 *dest = ldata;
10284 src++;
10285 dest++;
10290 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
10291 * @phba: Pointer to HBA context object.
10292 * @pring: Pointer to driver SLI ring object.
10293 * @mp: Pointer to driver buffer object.
10295 * This function is called with no lock held.
10296 * It always return zero after adding the buffer to the postbufq
10297 * buffer list.
10300 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10301 struct lpfc_dmabuf *mp)
10303 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
10304 later */
10305 spin_lock_irq(&phba->hbalock);
10306 list_add_tail(&mp->list, &pring->postbufq);
10307 pring->postbufq_cnt++;
10308 spin_unlock_irq(&phba->hbalock);
10309 return 0;
10313 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
10314 * @phba: Pointer to HBA context object.
10316 * When HBQ is enabled, buffers are searched based on tags. This function
10317 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
10318 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
10319 * does not conflict with tags of buffer posted for unsolicited events.
10320 * The function returns the allocated tag. The function is called with
10321 * no locks held.
10323 uint32_t
10324 lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
10326 spin_lock_irq(&phba->hbalock);
10327 phba->buffer_tag_count++;
10329 * Always set the QUE_BUFTAG_BIT to distiguish between
10330 * a tag assigned by HBQ.
10332 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
10333 spin_unlock_irq(&phba->hbalock);
10334 return phba->buffer_tag_count;
10338 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
10339 * @phba: Pointer to HBA context object.
10340 * @pring: Pointer to driver SLI ring object.
10341 * @tag: Buffer tag.
10343 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
10344 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
10345 * iocb is posted to the response ring with the tag of the buffer.
10346 * This function searches the pring->postbufq list using the tag
10347 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
10348 * iocb. If the buffer is found then lpfc_dmabuf object of the
10349 * buffer is returned to the caller else NULL is returned.
10350 * This function is called with no lock held.
10352 struct lpfc_dmabuf *
10353 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10354 uint32_t tag)
10356 struct lpfc_dmabuf *mp, *next_mp;
10357 struct list_head *slp = &pring->postbufq;
10359 /* Search postbufq, from the beginning, looking for a match on tag */
10360 spin_lock_irq(&phba->hbalock);
10361 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
10362 if (mp->buffer_tag == tag) {
10363 list_del_init(&mp->list);
10364 pring->postbufq_cnt--;
10365 spin_unlock_irq(&phba->hbalock);
10366 return mp;
10370 spin_unlock_irq(&phba->hbalock);
10371 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10372 "0402 Cannot find virtual addr for buffer tag on "
10373 "ring %d Data x%lx x%p x%p x%x\n",
10374 pring->ringno, (unsigned long) tag,
10375 slp->next, slp->prev, pring->postbufq_cnt);
10377 return NULL;
10381 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
10382 * @phba: Pointer to HBA context object.
10383 * @pring: Pointer to driver SLI ring object.
10384 * @phys: DMA address of the buffer.
10386 * This function searches the buffer list using the dma_address
10387 * of unsolicited event to find the driver's lpfc_dmabuf object
10388 * corresponding to the dma_address. The function returns the
10389 * lpfc_dmabuf object if a buffer is found else it returns NULL.
10390 * This function is called by the ct and els unsolicited event
10391 * handlers to get the buffer associated with the unsolicited
10392 * event.
10394 * This function is called with no lock held.
10396 struct lpfc_dmabuf *
10397 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10398 dma_addr_t phys)
10400 struct lpfc_dmabuf *mp, *next_mp;
10401 struct list_head *slp = &pring->postbufq;
10403 /* Search postbufq, from the beginning, looking for a match on phys */
10404 spin_lock_irq(&phba->hbalock);
10405 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
10406 if (mp->phys == phys) {
10407 list_del_init(&mp->list);
10408 pring->postbufq_cnt--;
10409 spin_unlock_irq(&phba->hbalock);
10410 return mp;
10414 spin_unlock_irq(&phba->hbalock);
10415 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10416 "0410 Cannot find virtual addr for mapped buf on "
10417 "ring %d Data x%llx x%p x%p x%x\n",
10418 pring->ringno, (unsigned long long)phys,
10419 slp->next, slp->prev, pring->postbufq_cnt);
10420 return NULL;
10424 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
10425 * @phba: Pointer to HBA context object.
10426 * @cmdiocb: Pointer to driver command iocb object.
10427 * @rspiocb: Pointer to driver response iocb object.
10429 * This function is the completion handler for the abort iocbs for
10430 * ELS commands. This function is called from the ELS ring event
10431 * handler with no lock held. This function frees memory resources
10432 * associated with the abort iocb.
10434 static void
10435 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10436 struct lpfc_iocbq *rspiocb)
10438 IOCB_t *irsp = &rspiocb->iocb;
10439 uint16_t abort_iotag, abort_context;
10440 struct lpfc_iocbq *abort_iocb = NULL;
10442 if (irsp->ulpStatus) {
10445 * Assume that the port already completed and returned, or
10446 * will return the iocb. Just Log the message.
10448 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
10449 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
10451 spin_lock_irq(&phba->hbalock);
10452 if (phba->sli_rev < LPFC_SLI_REV4) {
10453 if (abort_iotag != 0 &&
10454 abort_iotag <= phba->sli.last_iotag)
10455 abort_iocb =
10456 phba->sli.iocbq_lookup[abort_iotag];
10457 } else
10458 /* For sli4 the abort_tag is the XRI,
10459 * so the abort routine puts the iotag of the iocb
10460 * being aborted in the context field of the abort
10461 * IOCB.
10463 abort_iocb = phba->sli.iocbq_lookup[abort_context];
10465 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
10466 "0327 Cannot abort els iocb %p "
10467 "with tag %x context %x, abort status %x, "
10468 "abort code %x\n",
10469 abort_iocb, abort_iotag, abort_context,
10470 irsp->ulpStatus, irsp->un.ulpWord[4]);
10472 spin_unlock_irq(&phba->hbalock);
10474 lpfc_sli_release_iocbq(phba, cmdiocb);
10475 return;
10479 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
10480 * @phba: Pointer to HBA context object.
10481 * @cmdiocb: Pointer to driver command iocb object.
10482 * @rspiocb: Pointer to driver response iocb object.
10484 * The function is called from SLI ring event handler with no
10485 * lock held. This function is the completion handler for ELS commands
10486 * which are aborted. The function frees memory resources used for
10487 * the aborted ELS commands.
10489 static void
10490 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10491 struct lpfc_iocbq *rspiocb)
10493 IOCB_t *irsp = &rspiocb->iocb;
10495 /* ELS cmd tag <ulpIoTag> completes */
10496 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
10497 "0139 Ignoring ELS cmd tag x%x completion Data: "
10498 "x%x x%x x%x\n",
10499 irsp->ulpIoTag, irsp->ulpStatus,
10500 irsp->un.ulpWord[4], irsp->ulpTimeout);
10501 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
10502 lpfc_ct_free_iocb(phba, cmdiocb);
10503 else
10504 lpfc_els_free_iocb(phba, cmdiocb);
10505 return;
10509 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
10510 * @phba: Pointer to HBA context object.
10511 * @pring: Pointer to driver SLI ring object.
10512 * @cmdiocb: Pointer to driver command iocb object.
10514 * This function issues an abort iocb for the provided command iocb down to
10515 * the port. Other than the case the outstanding command iocb is an abort
10516 * request, this function issues abort out unconditionally. This function is
10517 * called with hbalock held. The function returns 0 when it fails due to
10518 * memory allocation failure or when the command iocb is an abort request.
10520 static int
10521 lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10522 struct lpfc_iocbq *cmdiocb)
10524 struct lpfc_vport *vport = cmdiocb->vport;
10525 struct lpfc_iocbq *abtsiocbp;
10526 IOCB_t *icmd = NULL;
10527 IOCB_t *iabt = NULL;
10528 int retval;
10529 unsigned long iflags;
10531 lockdep_assert_held(&phba->hbalock);
10534 * There are certain command types we don't want to abort. And we
10535 * don't want to abort commands that are already in the process of
10536 * being aborted.
10538 icmd = &cmdiocb->iocb;
10539 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
10540 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
10541 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
10542 return 0;
10544 /* issue ABTS for this IOCB based on iotag */
10545 abtsiocbp = __lpfc_sli_get_iocbq(phba);
10546 if (abtsiocbp == NULL)
10547 return 0;
10549 /* This signals the response to set the correct status
10550 * before calling the completion handler
10552 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
10554 iabt = &abtsiocbp->iocb;
10555 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
10556 iabt->un.acxri.abortContextTag = icmd->ulpContext;
10557 if (phba->sli_rev == LPFC_SLI_REV4) {
10558 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
10559 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
10561 else
10562 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
10563 iabt->ulpLe = 1;
10564 iabt->ulpClass = icmd->ulpClass;
10566 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10567 abtsiocbp->hba_wqidx = cmdiocb->hba_wqidx;
10568 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
10569 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
10570 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
10571 abtsiocbp->iocb_flag |= LPFC_IO_FOF;
10573 if (phba->link_state >= LPFC_LINK_UP)
10574 iabt->ulpCommand = CMD_ABORT_XRI_CN;
10575 else
10576 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
10578 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
10579 abtsiocbp->vport = vport;
10581 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
10582 "0339 Abort xri x%x, original iotag x%x, "
10583 "abort cmd iotag x%x\n",
10584 iabt->un.acxri.abortIoTag,
10585 iabt->un.acxri.abortContextTag,
10586 abtsiocbp->iotag);
10588 if (phba->sli_rev == LPFC_SLI_REV4) {
10589 pring = lpfc_sli4_calc_ring(phba, abtsiocbp);
10590 if (unlikely(pring == NULL))
10591 return 0;
10592 /* Note: both hbalock and ring_lock need to be set here */
10593 spin_lock_irqsave(&pring->ring_lock, iflags);
10594 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
10595 abtsiocbp, 0);
10596 spin_unlock_irqrestore(&pring->ring_lock, iflags);
10597 } else {
10598 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
10599 abtsiocbp, 0);
10602 if (retval)
10603 __lpfc_sli_release_iocbq(phba, abtsiocbp);
10606 * Caller to this routine should check for IOCB_ERROR
10607 * and handle it properly. This routine no longer removes
10608 * iocb off txcmplq and call compl in case of IOCB_ERROR.
10610 return retval;
10614 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
10615 * @phba: Pointer to HBA context object.
10616 * @pring: Pointer to driver SLI ring object.
10617 * @cmdiocb: Pointer to driver command iocb object.
10619 * This function issues an abort iocb for the provided command iocb. In case
10620 * of unloading, the abort iocb will not be issued to commands on the ELS
10621 * ring. Instead, the callback function shall be changed to those commands
10622 * so that nothing happens when them finishes. This function is called with
10623 * hbalock held. The function returns 0 when the command iocb is an abort
10624 * request.
10627 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10628 struct lpfc_iocbq *cmdiocb)
10630 struct lpfc_vport *vport = cmdiocb->vport;
10631 int retval = IOCB_ERROR;
10632 IOCB_t *icmd = NULL;
10634 lockdep_assert_held(&phba->hbalock);
10637 * There are certain command types we don't want to abort. And we
10638 * don't want to abort commands that are already in the process of
10639 * being aborted.
10641 icmd = &cmdiocb->iocb;
10642 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
10643 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
10644 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
10645 return 0;
10647 if (!pring) {
10648 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
10649 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
10650 else
10651 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
10652 goto abort_iotag_exit;
10656 * If we're unloading, don't abort iocb on the ELS ring, but change
10657 * the callback so that nothing happens when it finishes.
10659 if ((vport->load_flag & FC_UNLOADING) &&
10660 (pring->ringno == LPFC_ELS_RING)) {
10661 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
10662 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
10663 else
10664 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
10665 goto abort_iotag_exit;
10668 /* Now, we try to issue the abort to the cmdiocb out */
10669 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
10671 abort_iotag_exit:
10673 * Caller to this routine should check for IOCB_ERROR
10674 * and handle it properly. This routine no longer removes
10675 * iocb off txcmplq and call compl in case of IOCB_ERROR.
10677 return retval;
10681 * lpfc_sli4_abort_nvme_io - Issue abort for a command iocb
10682 * @phba: Pointer to HBA context object.
10683 * @pring: Pointer to driver SLI ring object.
10684 * @cmdiocb: Pointer to driver command iocb object.
10686 * This function issues an abort iocb for the provided command iocb down to
10687 * the port. Other than the case the outstanding command iocb is an abort
10688 * request, this function issues abort out unconditionally. This function is
10689 * called with hbalock held. The function returns 0 when it fails due to
10690 * memory allocation failure or when the command iocb is an abort request.
10692 static int
10693 lpfc_sli4_abort_nvme_io(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
10694 struct lpfc_iocbq *cmdiocb)
10696 struct lpfc_vport *vport = cmdiocb->vport;
10697 struct lpfc_iocbq *abtsiocbp;
10698 union lpfc_wqe *abts_wqe;
10699 int retval;
10702 * There are certain command types we don't want to abort. And we
10703 * don't want to abort commands that are already in the process of
10704 * being aborted.
10706 if (cmdiocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
10707 cmdiocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN ||
10708 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
10709 return 0;
10711 /* issue ABTS for this io based on iotag */
10712 abtsiocbp = __lpfc_sli_get_iocbq(phba);
10713 if (abtsiocbp == NULL)
10714 return 0;
10716 /* This signals the response to set the correct status
10717 * before calling the completion handler
10719 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
10721 /* Complete prepping the abort wqe and issue to the FW. */
10722 abts_wqe = &abtsiocbp->wqe;
10723 bf_set(abort_cmd_ia, &abts_wqe->abort_cmd, 0);
10724 bf_set(abort_cmd_criteria, &abts_wqe->abort_cmd, T_XRI_TAG);
10726 /* Explicitly set reserved fields to zero.*/
10727 abts_wqe->abort_cmd.rsrvd4 = 0;
10728 abts_wqe->abort_cmd.rsrvd5 = 0;
10730 /* WQE Common - word 6. Context is XRI tag. Set 0. */
10731 bf_set(wqe_xri_tag, &abts_wqe->abort_cmd.wqe_com, 0);
10732 bf_set(wqe_ctxt_tag, &abts_wqe->abort_cmd.wqe_com, 0);
10734 /* word 7 */
10735 bf_set(wqe_ct, &abts_wqe->abort_cmd.wqe_com, 0);
10736 bf_set(wqe_cmnd, &abts_wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
10737 bf_set(wqe_class, &abts_wqe->abort_cmd.wqe_com,
10738 cmdiocb->iocb.ulpClass);
10740 /* word 8 - tell the FW to abort the IO associated with this
10741 * outstanding exchange ID.
10743 abts_wqe->abort_cmd.wqe_com.abort_tag = cmdiocb->sli4_xritag;
10745 /* word 9 - this is the iotag for the abts_wqe completion. */
10746 bf_set(wqe_reqtag, &abts_wqe->abort_cmd.wqe_com,
10747 abtsiocbp->iotag);
10749 /* word 10 */
10750 bf_set(wqe_wqid, &abts_wqe->abort_cmd.wqe_com, cmdiocb->hba_wqidx);
10751 bf_set(wqe_qosd, &abts_wqe->abort_cmd.wqe_com, 1);
10752 bf_set(wqe_lenloc, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_LENLOC_NONE);
10754 /* word 11 */
10755 bf_set(wqe_cmd_type, &abts_wqe->abort_cmd.wqe_com, OTHER_COMMAND);
10756 bf_set(wqe_wqec, &abts_wqe->abort_cmd.wqe_com, 1);
10757 bf_set(wqe_cqid, &abts_wqe->abort_cmd.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
10759 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10760 abtsiocbp->iocb_flag |= LPFC_IO_NVME;
10761 abtsiocbp->vport = vport;
10762 abtsiocbp->wqe_cmpl = lpfc_nvme_abort_fcreq_cmpl;
10763 retval = lpfc_sli4_issue_wqe(phba, LPFC_FCP_RING, abtsiocbp);
10764 if (retval) {
10765 lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME,
10766 "6147 Failed abts issue_wqe with status x%x "
10767 "for oxid x%x\n",
10768 retval, cmdiocb->sli4_xritag);
10769 lpfc_sli_release_iocbq(phba, abtsiocbp);
10770 return retval;
10773 lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME,
10774 "6148 Drv Abort NVME Request Issued for "
10775 "ox_id x%x on reqtag x%x\n",
10776 cmdiocb->sli4_xritag,
10777 abtsiocbp->iotag);
10779 return retval;
10783 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
10784 * @phba: pointer to lpfc HBA data structure.
10786 * This routine will abort all pending and outstanding iocbs to an HBA.
10788 void
10789 lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
10791 struct lpfc_sli *psli = &phba->sli;
10792 struct lpfc_sli_ring *pring;
10793 struct lpfc_queue *qp = NULL;
10794 int i;
10796 if (phba->sli_rev != LPFC_SLI_REV4) {
10797 for (i = 0; i < psli->num_rings; i++) {
10798 pring = &psli->sli3_ring[i];
10799 lpfc_sli_abort_iocb_ring(phba, pring);
10801 return;
10803 list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
10804 pring = qp->pring;
10805 if (!pring)
10806 continue;
10807 lpfc_sli_abort_iocb_ring(phba, pring);
10812 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
10813 * @iocbq: Pointer to driver iocb object.
10814 * @vport: Pointer to driver virtual port object.
10815 * @tgt_id: SCSI ID of the target.
10816 * @lun_id: LUN ID of the scsi device.
10817 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
10819 * This function acts as an iocb filter for functions which abort or count
10820 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
10821 * 0 if the filtering criteria is met for the given iocb and will return
10822 * 1 if the filtering criteria is not met.
10823 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
10824 * given iocb is for the SCSI device specified by vport, tgt_id and
10825 * lun_id parameter.
10826 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
10827 * given iocb is for the SCSI target specified by vport and tgt_id
10828 * parameters.
10829 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
10830 * given iocb is for the SCSI host associated with the given vport.
10831 * This function is called with no locks held.
10833 static int
10834 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
10835 uint16_t tgt_id, uint64_t lun_id,
10836 lpfc_ctx_cmd ctx_cmd)
10838 struct lpfc_scsi_buf *lpfc_cmd;
10839 int rc = 1;
10841 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
10842 return rc;
10844 if (iocbq->vport != vport)
10845 return rc;
10847 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
10849 if (lpfc_cmd->pCmd == NULL)
10850 return rc;
10852 switch (ctx_cmd) {
10853 case LPFC_CTX_LUN:
10854 if ((lpfc_cmd->rdata->pnode) &&
10855 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
10856 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
10857 rc = 0;
10858 break;
10859 case LPFC_CTX_TGT:
10860 if ((lpfc_cmd->rdata->pnode) &&
10861 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
10862 rc = 0;
10863 break;
10864 case LPFC_CTX_HOST:
10865 rc = 0;
10866 break;
10867 default:
10868 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
10869 __func__, ctx_cmd);
10870 break;
10873 return rc;
10877 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
10878 * @vport: Pointer to virtual port.
10879 * @tgt_id: SCSI ID of the target.
10880 * @lun_id: LUN ID of the scsi device.
10881 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10883 * This function returns number of FCP commands pending for the vport.
10884 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
10885 * commands pending on the vport associated with SCSI device specified
10886 * by tgt_id and lun_id parameters.
10887 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
10888 * commands pending on the vport associated with SCSI target specified
10889 * by tgt_id parameter.
10890 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
10891 * commands pending on the vport.
10892 * This function returns the number of iocbs which satisfy the filter.
10893 * This function is called without any lock held.
10896 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
10897 lpfc_ctx_cmd ctx_cmd)
10899 struct lpfc_hba *phba = vport->phba;
10900 struct lpfc_iocbq *iocbq;
10901 int sum, i;
10903 spin_lock_irq(&phba->hbalock);
10904 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
10905 iocbq = phba->sli.iocbq_lookup[i];
10907 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
10908 ctx_cmd) == 0)
10909 sum++;
10911 spin_unlock_irq(&phba->hbalock);
10913 return sum;
10917 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
10918 * @phba: Pointer to HBA context object
10919 * @cmdiocb: Pointer to command iocb object.
10920 * @rspiocb: Pointer to response iocb object.
10922 * This function is called when an aborted FCP iocb completes. This
10923 * function is called by the ring event handler with no lock held.
10924 * This function frees the iocb.
10926 void
10927 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10928 struct lpfc_iocbq *rspiocb)
10930 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10931 "3096 ABORT_XRI_CN completing on rpi x%x "
10932 "original iotag x%x, abort cmd iotag x%x "
10933 "status 0x%x, reason 0x%x\n",
10934 cmdiocb->iocb.un.acxri.abortContextTag,
10935 cmdiocb->iocb.un.acxri.abortIoTag,
10936 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
10937 rspiocb->iocb.un.ulpWord[4]);
10938 lpfc_sli_release_iocbq(phba, cmdiocb);
10939 return;
10943 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
10944 * @vport: Pointer to virtual port.
10945 * @pring: Pointer to driver SLI ring object.
10946 * @tgt_id: SCSI ID of the target.
10947 * @lun_id: LUN ID of the scsi device.
10948 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10950 * This function sends an abort command for every SCSI command
10951 * associated with the given virtual port pending on the ring
10952 * filtered by lpfc_sli_validate_fcp_iocb function.
10953 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
10954 * FCP iocbs associated with lun specified by tgt_id and lun_id
10955 * parameters
10956 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
10957 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10958 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
10959 * FCP iocbs associated with virtual port.
10960 * This function returns number of iocbs it failed to abort.
10961 * This function is called with no locks held.
10964 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
10965 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
10967 struct lpfc_hba *phba = vport->phba;
10968 struct lpfc_iocbq *iocbq;
10969 struct lpfc_iocbq *abtsiocb;
10970 struct lpfc_sli_ring *pring_s4;
10971 IOCB_t *cmd = NULL;
10972 int errcnt = 0, ret_val = 0;
10973 int i;
10975 for (i = 1; i <= phba->sli.last_iotag; i++) {
10976 iocbq = phba->sli.iocbq_lookup[i];
10978 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
10979 abort_cmd) != 0)
10980 continue;
10983 * If the iocbq is already being aborted, don't take a second
10984 * action, but do count it.
10986 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
10987 continue;
10989 /* issue ABTS for this IOCB based on iotag */
10990 abtsiocb = lpfc_sli_get_iocbq(phba);
10991 if (abtsiocb == NULL) {
10992 errcnt++;
10993 continue;
10996 /* indicate the IO is being aborted by the driver. */
10997 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
10999 cmd = &iocbq->iocb;
11000 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
11001 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
11002 if (phba->sli_rev == LPFC_SLI_REV4)
11003 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
11004 else
11005 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
11006 abtsiocb->iocb.ulpLe = 1;
11007 abtsiocb->iocb.ulpClass = cmd->ulpClass;
11008 abtsiocb->vport = vport;
11010 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11011 abtsiocb->hba_wqidx = iocbq->hba_wqidx;
11012 if (iocbq->iocb_flag & LPFC_IO_FCP)
11013 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
11014 if (iocbq->iocb_flag & LPFC_IO_FOF)
11015 abtsiocb->iocb_flag |= LPFC_IO_FOF;
11017 if (lpfc_is_link_up(phba))
11018 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
11019 else
11020 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
11022 /* Setup callback routine and issue the command. */
11023 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
11024 if (phba->sli_rev == LPFC_SLI_REV4) {
11025 pring_s4 = lpfc_sli4_calc_ring(phba, iocbq);
11026 if (!pring_s4)
11027 continue;
11028 ret_val = lpfc_sli_issue_iocb(phba, pring_s4->ringno,
11029 abtsiocb, 0);
11030 } else
11031 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
11032 abtsiocb, 0);
11033 if (ret_val == IOCB_ERROR) {
11034 lpfc_sli_release_iocbq(phba, abtsiocb);
11035 errcnt++;
11036 continue;
11040 return errcnt;
11044 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
11045 * @vport: Pointer to virtual port.
11046 * @pring: Pointer to driver SLI ring object.
11047 * @tgt_id: SCSI ID of the target.
11048 * @lun_id: LUN ID of the scsi device.
11049 * @taskmgmt_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
11051 * This function sends an abort command for every SCSI command
11052 * associated with the given virtual port pending on the ring
11053 * filtered by lpfc_sli_validate_fcp_iocb function.
11054 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
11055 * FCP iocbs associated with lun specified by tgt_id and lun_id
11056 * parameters
11057 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
11058 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
11059 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
11060 * FCP iocbs associated with virtual port.
11061 * This function returns number of iocbs it aborted .
11062 * This function is called with no locks held right after a taskmgmt
11063 * command is sent.
11066 lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
11067 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
11069 struct lpfc_hba *phba = vport->phba;
11070 struct lpfc_scsi_buf *lpfc_cmd;
11071 struct lpfc_iocbq *abtsiocbq;
11072 struct lpfc_nodelist *ndlp;
11073 struct lpfc_iocbq *iocbq;
11074 IOCB_t *icmd;
11075 int sum, i, ret_val;
11076 unsigned long iflags;
11077 struct lpfc_sli_ring *pring_s4;
11079 spin_lock_irq(&phba->hbalock);
11081 /* all I/Os are in process of being flushed */
11082 if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) {
11083 spin_unlock_irq(&phba->hbalock);
11084 return 0;
11086 sum = 0;
11088 for (i = 1; i <= phba->sli.last_iotag; i++) {
11089 iocbq = phba->sli.iocbq_lookup[i];
11091 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
11092 cmd) != 0)
11093 continue;
11096 * If the iocbq is already being aborted, don't take a second
11097 * action, but do count it.
11099 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
11100 continue;
11102 /* issue ABTS for this IOCB based on iotag */
11103 abtsiocbq = __lpfc_sli_get_iocbq(phba);
11104 if (abtsiocbq == NULL)
11105 continue;
11107 icmd = &iocbq->iocb;
11108 abtsiocbq->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
11109 abtsiocbq->iocb.un.acxri.abortContextTag = icmd->ulpContext;
11110 if (phba->sli_rev == LPFC_SLI_REV4)
11111 abtsiocbq->iocb.un.acxri.abortIoTag =
11112 iocbq->sli4_xritag;
11113 else
11114 abtsiocbq->iocb.un.acxri.abortIoTag = icmd->ulpIoTag;
11115 abtsiocbq->iocb.ulpLe = 1;
11116 abtsiocbq->iocb.ulpClass = icmd->ulpClass;
11117 abtsiocbq->vport = vport;
11119 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
11120 abtsiocbq->hba_wqidx = iocbq->hba_wqidx;
11121 if (iocbq->iocb_flag & LPFC_IO_FCP)
11122 abtsiocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
11123 if (iocbq->iocb_flag & LPFC_IO_FOF)
11124 abtsiocbq->iocb_flag |= LPFC_IO_FOF;
11126 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
11127 ndlp = lpfc_cmd->rdata->pnode;
11129 if (lpfc_is_link_up(phba) &&
11130 (ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE))
11131 abtsiocbq->iocb.ulpCommand = CMD_ABORT_XRI_CN;
11132 else
11133 abtsiocbq->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
11135 /* Setup callback routine and issue the command. */
11136 abtsiocbq->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
11139 * Indicate the IO is being aborted by the driver and set
11140 * the caller's flag into the aborted IO.
11142 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
11144 if (phba->sli_rev == LPFC_SLI_REV4) {
11145 pring_s4 = lpfc_sli4_calc_ring(phba, iocbq);
11146 if (pring_s4 == NULL)
11147 continue;
11148 /* Note: both hbalock and ring_lock must be set here */
11149 spin_lock_irqsave(&pring_s4->ring_lock, iflags);
11150 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
11151 abtsiocbq, 0);
11152 spin_unlock_irqrestore(&pring_s4->ring_lock, iflags);
11153 } else {
11154 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
11155 abtsiocbq, 0);
11159 if (ret_val == IOCB_ERROR)
11160 __lpfc_sli_release_iocbq(phba, abtsiocbq);
11161 else
11162 sum++;
11164 spin_unlock_irq(&phba->hbalock);
11165 return sum;
11169 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
11170 * @phba: Pointer to HBA context object.
11171 * @cmdiocbq: Pointer to command iocb.
11172 * @rspiocbq: Pointer to response iocb.
11174 * This function is the completion handler for iocbs issued using
11175 * lpfc_sli_issue_iocb_wait function. This function is called by the
11176 * ring event handler function without any lock held. This function
11177 * can be called from both worker thread context and interrupt
11178 * context. This function also can be called from other thread which
11179 * cleans up the SLI layer objects.
11180 * This function copy the contents of the response iocb to the
11181 * response iocb memory object provided by the caller of
11182 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
11183 * sleeps for the iocb completion.
11185 static void
11186 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
11187 struct lpfc_iocbq *cmdiocbq,
11188 struct lpfc_iocbq *rspiocbq)
11190 wait_queue_head_t *pdone_q;
11191 unsigned long iflags;
11192 struct lpfc_scsi_buf *lpfc_cmd;
11194 spin_lock_irqsave(&phba->hbalock, iflags);
11195 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
11198 * A time out has occurred for the iocb. If a time out
11199 * completion handler has been supplied, call it. Otherwise,
11200 * just free the iocbq.
11203 spin_unlock_irqrestore(&phba->hbalock, iflags);
11204 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
11205 cmdiocbq->wait_iocb_cmpl = NULL;
11206 if (cmdiocbq->iocb_cmpl)
11207 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
11208 else
11209 lpfc_sli_release_iocbq(phba, cmdiocbq);
11210 return;
11213 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
11214 if (cmdiocbq->context2 && rspiocbq)
11215 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
11216 &rspiocbq->iocb, sizeof(IOCB_t));
11218 /* Set the exchange busy flag for task management commands */
11219 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
11220 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
11221 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
11222 cur_iocbq);
11223 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
11226 pdone_q = cmdiocbq->context_un.wait_queue;
11227 if (pdone_q)
11228 wake_up(pdone_q);
11229 spin_unlock_irqrestore(&phba->hbalock, iflags);
11230 return;
11234 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
11235 * @phba: Pointer to HBA context object..
11236 * @piocbq: Pointer to command iocb.
11237 * @flag: Flag to test.
11239 * This routine grabs the hbalock and then test the iocb_flag to
11240 * see if the passed in flag is set.
11241 * Returns:
11242 * 1 if flag is set.
11243 * 0 if flag is not set.
11245 static int
11246 lpfc_chk_iocb_flg(struct lpfc_hba *phba,
11247 struct lpfc_iocbq *piocbq, uint32_t flag)
11249 unsigned long iflags;
11250 int ret;
11252 spin_lock_irqsave(&phba->hbalock, iflags);
11253 ret = piocbq->iocb_flag & flag;
11254 spin_unlock_irqrestore(&phba->hbalock, iflags);
11255 return ret;
11260 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
11261 * @phba: Pointer to HBA context object..
11262 * @pring: Pointer to sli ring.
11263 * @piocb: Pointer to command iocb.
11264 * @prspiocbq: Pointer to response iocb.
11265 * @timeout: Timeout in number of seconds.
11267 * This function issues the iocb to firmware and waits for the
11268 * iocb to complete. The iocb_cmpl field of the shall be used
11269 * to handle iocbs which time out. If the field is NULL, the
11270 * function shall free the iocbq structure. If more clean up is
11271 * needed, the caller is expected to provide a completion function
11272 * that will provide the needed clean up. If the iocb command is
11273 * not completed within timeout seconds, the function will either
11274 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
11275 * completion function set in the iocb_cmpl field and then return
11276 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
11277 * resources if this function returns IOCB_TIMEDOUT.
11278 * The function waits for the iocb completion using an
11279 * non-interruptible wait.
11280 * This function will sleep while waiting for iocb completion.
11281 * So, this function should not be called from any context which
11282 * does not allow sleeping. Due to the same reason, this function
11283 * cannot be called with interrupt disabled.
11284 * This function assumes that the iocb completions occur while
11285 * this function sleep. So, this function cannot be called from
11286 * the thread which process iocb completion for this ring.
11287 * This function clears the iocb_flag of the iocb object before
11288 * issuing the iocb and the iocb completion handler sets this
11289 * flag and wakes this thread when the iocb completes.
11290 * The contents of the response iocb will be copied to prspiocbq
11291 * by the completion handler when the command completes.
11292 * This function returns IOCB_SUCCESS when success.
11293 * This function is called with no lock held.
11296 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
11297 uint32_t ring_number,
11298 struct lpfc_iocbq *piocb,
11299 struct lpfc_iocbq *prspiocbq,
11300 uint32_t timeout)
11302 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
11303 long timeleft, timeout_req = 0;
11304 int retval = IOCB_SUCCESS;
11305 uint32_t creg_val;
11306 struct lpfc_iocbq *iocb;
11307 int txq_cnt = 0;
11308 int txcmplq_cnt = 0;
11309 struct lpfc_sli_ring *pring;
11310 unsigned long iflags;
11311 bool iocb_completed = true;
11313 if (phba->sli_rev >= LPFC_SLI_REV4)
11314 pring = lpfc_sli4_calc_ring(phba, piocb);
11315 else
11316 pring = &phba->sli.sli3_ring[ring_number];
11318 * If the caller has provided a response iocbq buffer, then context2
11319 * is NULL or its an error.
11321 if (prspiocbq) {
11322 if (piocb->context2)
11323 return IOCB_ERROR;
11324 piocb->context2 = prspiocbq;
11327 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
11328 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
11329 piocb->context_un.wait_queue = &done_q;
11330 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
11332 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
11333 if (lpfc_readl(phba->HCregaddr, &creg_val))
11334 return IOCB_ERROR;
11335 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
11336 writel(creg_val, phba->HCregaddr);
11337 readl(phba->HCregaddr); /* flush */
11340 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
11341 SLI_IOCB_RET_IOCB);
11342 if (retval == IOCB_SUCCESS) {
11343 timeout_req = msecs_to_jiffies(timeout * 1000);
11344 timeleft = wait_event_timeout(done_q,
11345 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
11346 timeout_req);
11347 spin_lock_irqsave(&phba->hbalock, iflags);
11348 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
11351 * IOCB timed out. Inform the wake iocb wait
11352 * completion function and set local status
11355 iocb_completed = false;
11356 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
11358 spin_unlock_irqrestore(&phba->hbalock, iflags);
11359 if (iocb_completed) {
11360 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11361 "0331 IOCB wake signaled\n");
11362 /* Note: we are not indicating if the IOCB has a success
11363 * status or not - that's for the caller to check.
11364 * IOCB_SUCCESS means just that the command was sent and
11365 * completed. Not that it completed successfully.
11366 * */
11367 } else if (timeleft == 0) {
11368 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11369 "0338 IOCB wait timeout error - no "
11370 "wake response Data x%x\n", timeout);
11371 retval = IOCB_TIMEDOUT;
11372 } else {
11373 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11374 "0330 IOCB wake NOT set, "
11375 "Data x%x x%lx\n",
11376 timeout, (timeleft / jiffies));
11377 retval = IOCB_TIMEDOUT;
11379 } else if (retval == IOCB_BUSY) {
11380 if (phba->cfg_log_verbose & LOG_SLI) {
11381 list_for_each_entry(iocb, &pring->txq, list) {
11382 txq_cnt++;
11384 list_for_each_entry(iocb, &pring->txcmplq, list) {
11385 txcmplq_cnt++;
11387 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11388 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
11389 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
11391 return retval;
11392 } else {
11393 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11394 "0332 IOCB wait issue failed, Data x%x\n",
11395 retval);
11396 retval = IOCB_ERROR;
11399 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
11400 if (lpfc_readl(phba->HCregaddr, &creg_val))
11401 return IOCB_ERROR;
11402 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
11403 writel(creg_val, phba->HCregaddr);
11404 readl(phba->HCregaddr); /* flush */
11407 if (prspiocbq)
11408 piocb->context2 = NULL;
11410 piocb->context_un.wait_queue = NULL;
11411 piocb->iocb_cmpl = NULL;
11412 return retval;
11416 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
11417 * @phba: Pointer to HBA context object.
11418 * @pmboxq: Pointer to driver mailbox object.
11419 * @timeout: Timeout in number of seconds.
11421 * This function issues the mailbox to firmware and waits for the
11422 * mailbox command to complete. If the mailbox command is not
11423 * completed within timeout seconds, it returns MBX_TIMEOUT.
11424 * The function waits for the mailbox completion using an
11425 * interruptible wait. If the thread is woken up due to a
11426 * signal, MBX_TIMEOUT error is returned to the caller. Caller
11427 * should not free the mailbox resources, if this function returns
11428 * MBX_TIMEOUT.
11429 * This function will sleep while waiting for mailbox completion.
11430 * So, this function should not be called from any context which
11431 * does not allow sleeping. Due to the same reason, this function
11432 * cannot be called with interrupt disabled.
11433 * This function assumes that the mailbox completion occurs while
11434 * this function sleep. So, this function cannot be called from
11435 * the worker thread which processes mailbox completion.
11436 * This function is called in the context of HBA management
11437 * applications.
11438 * This function returns MBX_SUCCESS when successful.
11439 * This function is called with no lock held.
11442 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
11443 uint32_t timeout)
11445 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
11446 MAILBOX_t *mb = NULL;
11447 int retval;
11448 unsigned long flag;
11450 /* The caller might set context1 for extended buffer */
11451 if (pmboxq->context1)
11452 mb = (MAILBOX_t *)pmboxq->context1;
11454 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
11455 /* setup wake call as IOCB callback */
11456 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
11457 /* setup context field to pass wait_queue pointer to wake function */
11458 pmboxq->context1 = &done_q;
11460 /* now issue the command */
11461 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
11462 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
11463 wait_event_interruptible_timeout(done_q,
11464 pmboxq->mbox_flag & LPFC_MBX_WAKE,
11465 msecs_to_jiffies(timeout * 1000));
11467 spin_lock_irqsave(&phba->hbalock, flag);
11468 /* restore the possible extended buffer for free resource */
11469 pmboxq->context1 = (uint8_t *)mb;
11471 * if LPFC_MBX_WAKE flag is set the mailbox is completed
11472 * else do not free the resources.
11474 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
11475 retval = MBX_SUCCESS;
11476 } else {
11477 retval = MBX_TIMEOUT;
11478 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
11480 spin_unlock_irqrestore(&phba->hbalock, flag);
11481 } else {
11482 /* restore the possible extended buffer for free resource */
11483 pmboxq->context1 = (uint8_t *)mb;
11486 return retval;
11490 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
11491 * @phba: Pointer to HBA context.
11493 * This function is called to shutdown the driver's mailbox sub-system.
11494 * It first marks the mailbox sub-system is in a block state to prevent
11495 * the asynchronous mailbox command from issued off the pending mailbox
11496 * command queue. If the mailbox command sub-system shutdown is due to
11497 * HBA error conditions such as EEH or ERATT, this routine shall invoke
11498 * the mailbox sub-system flush routine to forcefully bring down the
11499 * mailbox sub-system. Otherwise, if it is due to normal condition (such
11500 * as with offline or HBA function reset), this routine will wait for the
11501 * outstanding mailbox command to complete before invoking the mailbox
11502 * sub-system flush routine to gracefully bring down mailbox sub-system.
11504 void
11505 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
11507 struct lpfc_sli *psli = &phba->sli;
11508 unsigned long timeout;
11510 if (mbx_action == LPFC_MBX_NO_WAIT) {
11511 /* delay 100ms for port state */
11512 msleep(100);
11513 lpfc_sli_mbox_sys_flush(phba);
11514 return;
11516 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
11518 spin_lock_irq(&phba->hbalock);
11519 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
11521 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
11522 /* Determine how long we might wait for the active mailbox
11523 * command to be gracefully completed by firmware.
11525 if (phba->sli.mbox_active)
11526 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
11527 phba->sli.mbox_active) *
11528 1000) + jiffies;
11529 spin_unlock_irq(&phba->hbalock);
11531 while (phba->sli.mbox_active) {
11532 /* Check active mailbox complete status every 2ms */
11533 msleep(2);
11534 if (time_after(jiffies, timeout))
11535 /* Timeout, let the mailbox flush routine to
11536 * forcefully release active mailbox command
11538 break;
11540 } else
11541 spin_unlock_irq(&phba->hbalock);
11543 lpfc_sli_mbox_sys_flush(phba);
11547 * lpfc_sli_eratt_read - read sli-3 error attention events
11548 * @phba: Pointer to HBA context.
11550 * This function is called to read the SLI3 device error attention registers
11551 * for possible error attention events. The caller must hold the hostlock
11552 * with spin_lock_irq().
11554 * This function returns 1 when there is Error Attention in the Host Attention
11555 * Register and returns 0 otherwise.
11557 static int
11558 lpfc_sli_eratt_read(struct lpfc_hba *phba)
11560 uint32_t ha_copy;
11562 /* Read chip Host Attention (HA) register */
11563 if (lpfc_readl(phba->HAregaddr, &ha_copy))
11564 goto unplug_err;
11566 if (ha_copy & HA_ERATT) {
11567 /* Read host status register to retrieve error event */
11568 if (lpfc_sli_read_hs(phba))
11569 goto unplug_err;
11571 /* Check if there is a deferred error condition is active */
11572 if ((HS_FFER1 & phba->work_hs) &&
11573 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
11574 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
11575 phba->hba_flag |= DEFER_ERATT;
11576 /* Clear all interrupt enable conditions */
11577 writel(0, phba->HCregaddr);
11578 readl(phba->HCregaddr);
11581 /* Set the driver HA work bitmap */
11582 phba->work_ha |= HA_ERATT;
11583 /* Indicate polling handles this ERATT */
11584 phba->hba_flag |= HBA_ERATT_HANDLED;
11585 return 1;
11587 return 0;
11589 unplug_err:
11590 /* Set the driver HS work bitmap */
11591 phba->work_hs |= UNPLUG_ERR;
11592 /* Set the driver HA work bitmap */
11593 phba->work_ha |= HA_ERATT;
11594 /* Indicate polling handles this ERATT */
11595 phba->hba_flag |= HBA_ERATT_HANDLED;
11596 return 1;
11600 * lpfc_sli4_eratt_read - read sli-4 error attention events
11601 * @phba: Pointer to HBA context.
11603 * This function is called to read the SLI4 device error attention registers
11604 * for possible error attention events. The caller must hold the hostlock
11605 * with spin_lock_irq().
11607 * This function returns 1 when there is Error Attention in the Host Attention
11608 * Register and returns 0 otherwise.
11610 static int
11611 lpfc_sli4_eratt_read(struct lpfc_hba *phba)
11613 uint32_t uerr_sta_hi, uerr_sta_lo;
11614 uint32_t if_type, portsmphr;
11615 struct lpfc_register portstat_reg;
11618 * For now, use the SLI4 device internal unrecoverable error
11619 * registers for error attention. This can be changed later.
11621 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11622 switch (if_type) {
11623 case LPFC_SLI_INTF_IF_TYPE_0:
11624 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
11625 &uerr_sta_lo) ||
11626 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
11627 &uerr_sta_hi)) {
11628 phba->work_hs |= UNPLUG_ERR;
11629 phba->work_ha |= HA_ERATT;
11630 phba->hba_flag |= HBA_ERATT_HANDLED;
11631 return 1;
11633 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
11634 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
11635 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11636 "1423 HBA Unrecoverable error: "
11637 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
11638 "ue_mask_lo_reg=0x%x, "
11639 "ue_mask_hi_reg=0x%x\n",
11640 uerr_sta_lo, uerr_sta_hi,
11641 phba->sli4_hba.ue_mask_lo,
11642 phba->sli4_hba.ue_mask_hi);
11643 phba->work_status[0] = uerr_sta_lo;
11644 phba->work_status[1] = uerr_sta_hi;
11645 phba->work_ha |= HA_ERATT;
11646 phba->hba_flag |= HBA_ERATT_HANDLED;
11647 return 1;
11649 break;
11650 case LPFC_SLI_INTF_IF_TYPE_2:
11651 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
11652 &portstat_reg.word0) ||
11653 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
11654 &portsmphr)){
11655 phba->work_hs |= UNPLUG_ERR;
11656 phba->work_ha |= HA_ERATT;
11657 phba->hba_flag |= HBA_ERATT_HANDLED;
11658 return 1;
11660 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
11661 phba->work_status[0] =
11662 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
11663 phba->work_status[1] =
11664 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
11665 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11666 "2885 Port Status Event: "
11667 "port status reg 0x%x, "
11668 "port smphr reg 0x%x, "
11669 "error 1=0x%x, error 2=0x%x\n",
11670 portstat_reg.word0,
11671 portsmphr,
11672 phba->work_status[0],
11673 phba->work_status[1]);
11674 phba->work_ha |= HA_ERATT;
11675 phba->hba_flag |= HBA_ERATT_HANDLED;
11676 return 1;
11678 break;
11679 case LPFC_SLI_INTF_IF_TYPE_1:
11680 default:
11681 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11682 "2886 HBA Error Attention on unsupported "
11683 "if type %d.", if_type);
11684 return 1;
11687 return 0;
11691 * lpfc_sli_check_eratt - check error attention events
11692 * @phba: Pointer to HBA context.
11694 * This function is called from timer soft interrupt context to check HBA's
11695 * error attention register bit for error attention events.
11697 * This function returns 1 when there is Error Attention in the Host Attention
11698 * Register and returns 0 otherwise.
11701 lpfc_sli_check_eratt(struct lpfc_hba *phba)
11703 uint32_t ha_copy;
11705 /* If somebody is waiting to handle an eratt, don't process it
11706 * here. The brdkill function will do this.
11708 if (phba->link_flag & LS_IGNORE_ERATT)
11709 return 0;
11711 /* Check if interrupt handler handles this ERATT */
11712 spin_lock_irq(&phba->hbalock);
11713 if (phba->hba_flag & HBA_ERATT_HANDLED) {
11714 /* Interrupt handler has handled ERATT */
11715 spin_unlock_irq(&phba->hbalock);
11716 return 0;
11720 * If there is deferred error attention, do not check for error
11721 * attention
11723 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11724 spin_unlock_irq(&phba->hbalock);
11725 return 0;
11728 /* If PCI channel is offline, don't process it */
11729 if (unlikely(pci_channel_offline(phba->pcidev))) {
11730 spin_unlock_irq(&phba->hbalock);
11731 return 0;
11734 switch (phba->sli_rev) {
11735 case LPFC_SLI_REV2:
11736 case LPFC_SLI_REV3:
11737 /* Read chip Host Attention (HA) register */
11738 ha_copy = lpfc_sli_eratt_read(phba);
11739 break;
11740 case LPFC_SLI_REV4:
11741 /* Read device Uncoverable Error (UERR) registers */
11742 ha_copy = lpfc_sli4_eratt_read(phba);
11743 break;
11744 default:
11745 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11746 "0299 Invalid SLI revision (%d)\n",
11747 phba->sli_rev);
11748 ha_copy = 0;
11749 break;
11751 spin_unlock_irq(&phba->hbalock);
11753 return ha_copy;
11757 * lpfc_intr_state_check - Check device state for interrupt handling
11758 * @phba: Pointer to HBA context.
11760 * This inline routine checks whether a device or its PCI slot is in a state
11761 * that the interrupt should be handled.
11763 * This function returns 0 if the device or the PCI slot is in a state that
11764 * interrupt should be handled, otherwise -EIO.
11766 static inline int
11767 lpfc_intr_state_check(struct lpfc_hba *phba)
11769 /* If the pci channel is offline, ignore all the interrupts */
11770 if (unlikely(pci_channel_offline(phba->pcidev)))
11771 return -EIO;
11773 /* Update device level interrupt statistics */
11774 phba->sli.slistat.sli_intr++;
11776 /* Ignore all interrupts during initialization. */
11777 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
11778 return -EIO;
11780 return 0;
11784 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
11785 * @irq: Interrupt number.
11786 * @dev_id: The device context pointer.
11788 * This function is directly called from the PCI layer as an interrupt
11789 * service routine when device with SLI-3 interface spec is enabled with
11790 * MSI-X multi-message interrupt mode and there are slow-path events in
11791 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
11792 * interrupt mode, this function is called as part of the device-level
11793 * interrupt handler. When the PCI slot is in error recovery or the HBA
11794 * is undergoing initialization, the interrupt handler will not process
11795 * the interrupt. The link attention and ELS ring attention events are
11796 * handled by the worker thread. The interrupt handler signals the worker
11797 * thread and returns for these events. This function is called without
11798 * any lock held. It gets the hbalock to access and update SLI data
11799 * structures.
11801 * This function returns IRQ_HANDLED when interrupt is handled else it
11802 * returns IRQ_NONE.
11804 irqreturn_t
11805 lpfc_sli_sp_intr_handler(int irq, void *dev_id)
11807 struct lpfc_hba *phba;
11808 uint32_t ha_copy, hc_copy;
11809 uint32_t work_ha_copy;
11810 unsigned long status;
11811 unsigned long iflag;
11812 uint32_t control;
11814 MAILBOX_t *mbox, *pmbox;
11815 struct lpfc_vport *vport;
11816 struct lpfc_nodelist *ndlp;
11817 struct lpfc_dmabuf *mp;
11818 LPFC_MBOXQ_t *pmb;
11819 int rc;
11822 * Get the driver's phba structure from the dev_id and
11823 * assume the HBA is not interrupting.
11825 phba = (struct lpfc_hba *)dev_id;
11827 if (unlikely(!phba))
11828 return IRQ_NONE;
11831 * Stuff needs to be attented to when this function is invoked as an
11832 * individual interrupt handler in MSI-X multi-message interrupt mode
11834 if (phba->intr_type == MSIX) {
11835 /* Check device state for handling interrupt */
11836 if (lpfc_intr_state_check(phba))
11837 return IRQ_NONE;
11838 /* Need to read HA REG for slow-path events */
11839 spin_lock_irqsave(&phba->hbalock, iflag);
11840 if (lpfc_readl(phba->HAregaddr, &ha_copy))
11841 goto unplug_error;
11842 /* If somebody is waiting to handle an eratt don't process it
11843 * here. The brdkill function will do this.
11845 if (phba->link_flag & LS_IGNORE_ERATT)
11846 ha_copy &= ~HA_ERATT;
11847 /* Check the need for handling ERATT in interrupt handler */
11848 if (ha_copy & HA_ERATT) {
11849 if (phba->hba_flag & HBA_ERATT_HANDLED)
11850 /* ERATT polling has handled ERATT */
11851 ha_copy &= ~HA_ERATT;
11852 else
11853 /* Indicate interrupt handler handles ERATT */
11854 phba->hba_flag |= HBA_ERATT_HANDLED;
11858 * If there is deferred error attention, do not check for any
11859 * interrupt.
11861 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
11862 spin_unlock_irqrestore(&phba->hbalock, iflag);
11863 return IRQ_NONE;
11866 /* Clear up only attention source related to slow-path */
11867 if (lpfc_readl(phba->HCregaddr, &hc_copy))
11868 goto unplug_error;
11870 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
11871 HC_LAINT_ENA | HC_ERINT_ENA),
11872 phba->HCregaddr);
11873 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
11874 phba->HAregaddr);
11875 writel(hc_copy, phba->HCregaddr);
11876 readl(phba->HAregaddr); /* flush */
11877 spin_unlock_irqrestore(&phba->hbalock, iflag);
11878 } else
11879 ha_copy = phba->ha_copy;
11881 work_ha_copy = ha_copy & phba->work_ha_mask;
11883 if (work_ha_copy) {
11884 if (work_ha_copy & HA_LATT) {
11885 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
11887 * Turn off Link Attention interrupts
11888 * until CLEAR_LA done
11890 spin_lock_irqsave(&phba->hbalock, iflag);
11891 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
11892 if (lpfc_readl(phba->HCregaddr, &control))
11893 goto unplug_error;
11894 control &= ~HC_LAINT_ENA;
11895 writel(control, phba->HCregaddr);
11896 readl(phba->HCregaddr); /* flush */
11897 spin_unlock_irqrestore(&phba->hbalock, iflag);
11899 else
11900 work_ha_copy &= ~HA_LATT;
11903 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
11905 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
11906 * the only slow ring.
11908 status = (work_ha_copy &
11909 (HA_RXMASK << (4*LPFC_ELS_RING)));
11910 status >>= (4*LPFC_ELS_RING);
11911 if (status & HA_RXMASK) {
11912 spin_lock_irqsave(&phba->hbalock, iflag);
11913 if (lpfc_readl(phba->HCregaddr, &control))
11914 goto unplug_error;
11916 lpfc_debugfs_slow_ring_trc(phba,
11917 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
11918 control, status,
11919 (uint32_t)phba->sli.slistat.sli_intr);
11921 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
11922 lpfc_debugfs_slow_ring_trc(phba,
11923 "ISR Disable ring:"
11924 "pwork:x%x hawork:x%x wait:x%x",
11925 phba->work_ha, work_ha_copy,
11926 (uint32_t)((unsigned long)
11927 &phba->work_waitq));
11929 control &=
11930 ~(HC_R0INT_ENA << LPFC_ELS_RING);
11931 writel(control, phba->HCregaddr);
11932 readl(phba->HCregaddr); /* flush */
11934 else {
11935 lpfc_debugfs_slow_ring_trc(phba,
11936 "ISR slow ring: pwork:"
11937 "x%x hawork:x%x wait:x%x",
11938 phba->work_ha, work_ha_copy,
11939 (uint32_t)((unsigned long)
11940 &phba->work_waitq));
11942 spin_unlock_irqrestore(&phba->hbalock, iflag);
11945 spin_lock_irqsave(&phba->hbalock, iflag);
11946 if (work_ha_copy & HA_ERATT) {
11947 if (lpfc_sli_read_hs(phba))
11948 goto unplug_error;
11950 * Check if there is a deferred error condition
11951 * is active
11953 if ((HS_FFER1 & phba->work_hs) &&
11954 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
11955 HS_FFER6 | HS_FFER7 | HS_FFER8) &
11956 phba->work_hs)) {
11957 phba->hba_flag |= DEFER_ERATT;
11958 /* Clear all interrupt enable conditions */
11959 writel(0, phba->HCregaddr);
11960 readl(phba->HCregaddr);
11964 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
11965 pmb = phba->sli.mbox_active;
11966 pmbox = &pmb->u.mb;
11967 mbox = phba->mbox;
11968 vport = pmb->vport;
11970 /* First check out the status word */
11971 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
11972 if (pmbox->mbxOwner != OWN_HOST) {
11973 spin_unlock_irqrestore(&phba->hbalock, iflag);
11975 * Stray Mailbox Interrupt, mbxCommand <cmd>
11976 * mbxStatus <status>
11978 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11979 LOG_SLI,
11980 "(%d):0304 Stray Mailbox "
11981 "Interrupt mbxCommand x%x "
11982 "mbxStatus x%x\n",
11983 (vport ? vport->vpi : 0),
11984 pmbox->mbxCommand,
11985 pmbox->mbxStatus);
11986 /* clear mailbox attention bit */
11987 work_ha_copy &= ~HA_MBATT;
11988 } else {
11989 phba->sli.mbox_active = NULL;
11990 spin_unlock_irqrestore(&phba->hbalock, iflag);
11991 phba->last_completion_time = jiffies;
11992 del_timer(&phba->sli.mbox_tmo);
11993 if (pmb->mbox_cmpl) {
11994 lpfc_sli_pcimem_bcopy(mbox, pmbox,
11995 MAILBOX_CMD_SIZE);
11996 if (pmb->out_ext_byte_len &&
11997 pmb->context2)
11998 lpfc_sli_pcimem_bcopy(
11999 phba->mbox_ext,
12000 pmb->context2,
12001 pmb->out_ext_byte_len);
12003 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
12004 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
12006 lpfc_debugfs_disc_trc(vport,
12007 LPFC_DISC_TRC_MBOX_VPORT,
12008 "MBOX dflt rpi: : "
12009 "status:x%x rpi:x%x",
12010 (uint32_t)pmbox->mbxStatus,
12011 pmbox->un.varWords[0], 0);
12013 if (!pmbox->mbxStatus) {
12014 mp = (struct lpfc_dmabuf *)
12015 (pmb->context1);
12016 ndlp = (struct lpfc_nodelist *)
12017 pmb->context2;
12019 /* Reg_LOGIN of dflt RPI was
12020 * successful. new lets get
12021 * rid of the RPI using the
12022 * same mbox buffer.
12024 lpfc_unreg_login(phba,
12025 vport->vpi,
12026 pmbox->un.varWords[0],
12027 pmb);
12028 pmb->mbox_cmpl =
12029 lpfc_mbx_cmpl_dflt_rpi;
12030 pmb->context1 = mp;
12031 pmb->context2 = ndlp;
12032 pmb->vport = vport;
12033 rc = lpfc_sli_issue_mbox(phba,
12034 pmb,
12035 MBX_NOWAIT);
12036 if (rc != MBX_BUSY)
12037 lpfc_printf_log(phba,
12038 KERN_ERR,
12039 LOG_MBOX | LOG_SLI,
12040 "0350 rc should have"
12041 "been MBX_BUSY\n");
12042 if (rc != MBX_NOT_FINISHED)
12043 goto send_current_mbox;
12046 spin_lock_irqsave(
12047 &phba->pport->work_port_lock,
12048 iflag);
12049 phba->pport->work_port_events &=
12050 ~WORKER_MBOX_TMO;
12051 spin_unlock_irqrestore(
12052 &phba->pport->work_port_lock,
12053 iflag);
12054 lpfc_mbox_cmpl_put(phba, pmb);
12056 } else
12057 spin_unlock_irqrestore(&phba->hbalock, iflag);
12059 if ((work_ha_copy & HA_MBATT) &&
12060 (phba->sli.mbox_active == NULL)) {
12061 send_current_mbox:
12062 /* Process next mailbox command if there is one */
12063 do {
12064 rc = lpfc_sli_issue_mbox(phba, NULL,
12065 MBX_NOWAIT);
12066 } while (rc == MBX_NOT_FINISHED);
12067 if (rc != MBX_SUCCESS)
12068 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
12069 LOG_SLI, "0349 rc should be "
12070 "MBX_SUCCESS\n");
12073 spin_lock_irqsave(&phba->hbalock, iflag);
12074 phba->work_ha |= work_ha_copy;
12075 spin_unlock_irqrestore(&phba->hbalock, iflag);
12076 lpfc_worker_wake_up(phba);
12078 return IRQ_HANDLED;
12079 unplug_error:
12080 spin_unlock_irqrestore(&phba->hbalock, iflag);
12081 return IRQ_HANDLED;
12083 } /* lpfc_sli_sp_intr_handler */
12086 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
12087 * @irq: Interrupt number.
12088 * @dev_id: The device context pointer.
12090 * This function is directly called from the PCI layer as an interrupt
12091 * service routine when device with SLI-3 interface spec is enabled with
12092 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
12093 * ring event in the HBA. However, when the device is enabled with either
12094 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12095 * device-level interrupt handler. When the PCI slot is in error recovery
12096 * or the HBA is undergoing initialization, the interrupt handler will not
12097 * process the interrupt. The SCSI FCP fast-path ring event are handled in
12098 * the intrrupt context. This function is called without any lock held.
12099 * It gets the hbalock to access and update SLI data structures.
12101 * This function returns IRQ_HANDLED when interrupt is handled else it
12102 * returns IRQ_NONE.
12104 irqreturn_t
12105 lpfc_sli_fp_intr_handler(int irq, void *dev_id)
12107 struct lpfc_hba *phba;
12108 uint32_t ha_copy;
12109 unsigned long status;
12110 unsigned long iflag;
12111 struct lpfc_sli_ring *pring;
12113 /* Get the driver's phba structure from the dev_id and
12114 * assume the HBA is not interrupting.
12116 phba = (struct lpfc_hba *) dev_id;
12118 if (unlikely(!phba))
12119 return IRQ_NONE;
12122 * Stuff needs to be attented to when this function is invoked as an
12123 * individual interrupt handler in MSI-X multi-message interrupt mode
12125 if (phba->intr_type == MSIX) {
12126 /* Check device state for handling interrupt */
12127 if (lpfc_intr_state_check(phba))
12128 return IRQ_NONE;
12129 /* Need to read HA REG for FCP ring and other ring events */
12130 if (lpfc_readl(phba->HAregaddr, &ha_copy))
12131 return IRQ_HANDLED;
12132 /* Clear up only attention source related to fast-path */
12133 spin_lock_irqsave(&phba->hbalock, iflag);
12135 * If there is deferred error attention, do not check for
12136 * any interrupt.
12138 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12139 spin_unlock_irqrestore(&phba->hbalock, iflag);
12140 return IRQ_NONE;
12142 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
12143 phba->HAregaddr);
12144 readl(phba->HAregaddr); /* flush */
12145 spin_unlock_irqrestore(&phba->hbalock, iflag);
12146 } else
12147 ha_copy = phba->ha_copy;
12150 * Process all events on FCP ring. Take the optimized path for FCP IO.
12152 ha_copy &= ~(phba->work_ha_mask);
12154 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
12155 status >>= (4*LPFC_FCP_RING);
12156 pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
12157 if (status & HA_RXMASK)
12158 lpfc_sli_handle_fast_ring_event(phba, pring, status);
12160 if (phba->cfg_multi_ring_support == 2) {
12162 * Process all events on extra ring. Take the optimized path
12163 * for extra ring IO.
12165 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
12166 status >>= (4*LPFC_EXTRA_RING);
12167 if (status & HA_RXMASK) {
12168 lpfc_sli_handle_fast_ring_event(phba,
12169 &phba->sli.sli3_ring[LPFC_EXTRA_RING],
12170 status);
12173 return IRQ_HANDLED;
12174 } /* lpfc_sli_fp_intr_handler */
12177 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
12178 * @irq: Interrupt number.
12179 * @dev_id: The device context pointer.
12181 * This function is the HBA device-level interrupt handler to device with
12182 * SLI-3 interface spec, called from the PCI layer when either MSI or
12183 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
12184 * requires driver attention. This function invokes the slow-path interrupt
12185 * attention handling function and fast-path interrupt attention handling
12186 * function in turn to process the relevant HBA attention events. This
12187 * function is called without any lock held. It gets the hbalock to access
12188 * and update SLI data structures.
12190 * This function returns IRQ_HANDLED when interrupt is handled, else it
12191 * returns IRQ_NONE.
12193 irqreturn_t
12194 lpfc_sli_intr_handler(int irq, void *dev_id)
12196 struct lpfc_hba *phba;
12197 irqreturn_t sp_irq_rc, fp_irq_rc;
12198 unsigned long status1, status2;
12199 uint32_t hc_copy;
12202 * Get the driver's phba structure from the dev_id and
12203 * assume the HBA is not interrupting.
12205 phba = (struct lpfc_hba *) dev_id;
12207 if (unlikely(!phba))
12208 return IRQ_NONE;
12210 /* Check device state for handling interrupt */
12211 if (lpfc_intr_state_check(phba))
12212 return IRQ_NONE;
12214 spin_lock(&phba->hbalock);
12215 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
12216 spin_unlock(&phba->hbalock);
12217 return IRQ_HANDLED;
12220 if (unlikely(!phba->ha_copy)) {
12221 spin_unlock(&phba->hbalock);
12222 return IRQ_NONE;
12223 } else if (phba->ha_copy & HA_ERATT) {
12224 if (phba->hba_flag & HBA_ERATT_HANDLED)
12225 /* ERATT polling has handled ERATT */
12226 phba->ha_copy &= ~HA_ERATT;
12227 else
12228 /* Indicate interrupt handler handles ERATT */
12229 phba->hba_flag |= HBA_ERATT_HANDLED;
12233 * If there is deferred error attention, do not check for any interrupt.
12235 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
12236 spin_unlock(&phba->hbalock);
12237 return IRQ_NONE;
12240 /* Clear attention sources except link and error attentions */
12241 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
12242 spin_unlock(&phba->hbalock);
12243 return IRQ_HANDLED;
12245 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
12246 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
12247 phba->HCregaddr);
12248 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
12249 writel(hc_copy, phba->HCregaddr);
12250 readl(phba->HAregaddr); /* flush */
12251 spin_unlock(&phba->hbalock);
12254 * Invokes slow-path host attention interrupt handling as appropriate.
12257 /* status of events with mailbox and link attention */
12258 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
12260 /* status of events with ELS ring */
12261 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
12262 status2 >>= (4*LPFC_ELS_RING);
12264 if (status1 || (status2 & HA_RXMASK))
12265 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
12266 else
12267 sp_irq_rc = IRQ_NONE;
12270 * Invoke fast-path host attention interrupt handling as appropriate.
12273 /* status of events with FCP ring */
12274 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
12275 status1 >>= (4*LPFC_FCP_RING);
12277 /* status of events with extra ring */
12278 if (phba->cfg_multi_ring_support == 2) {
12279 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
12280 status2 >>= (4*LPFC_EXTRA_RING);
12281 } else
12282 status2 = 0;
12284 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
12285 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
12286 else
12287 fp_irq_rc = IRQ_NONE;
12289 /* Return device-level interrupt handling status */
12290 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
12291 } /* lpfc_sli_intr_handler */
12294 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
12295 * @phba: pointer to lpfc hba data structure.
12297 * This routine is invoked by the worker thread to process all the pending
12298 * SLI4 FCP abort XRI events.
12300 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
12302 struct lpfc_cq_event *cq_event;
12304 /* First, declare the fcp xri abort event has been handled */
12305 spin_lock_irq(&phba->hbalock);
12306 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
12307 spin_unlock_irq(&phba->hbalock);
12308 /* Now, handle all the fcp xri abort events */
12309 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
12310 /* Get the first event from the head of the event queue */
12311 spin_lock_irq(&phba->hbalock);
12312 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
12313 cq_event, struct lpfc_cq_event, list);
12314 spin_unlock_irq(&phba->hbalock);
12315 /* Notify aborted XRI for FCP work queue */
12316 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
12317 /* Free the event processed back to the free pool */
12318 lpfc_sli4_cq_event_release(phba, cq_event);
12323 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
12324 * @phba: pointer to lpfc hba data structure.
12326 * This routine is invoked by the worker thread to process all the pending
12327 * SLI4 els abort xri events.
12329 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
12331 struct lpfc_cq_event *cq_event;
12333 /* First, declare the els xri abort event has been handled */
12334 spin_lock_irq(&phba->hbalock);
12335 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
12336 spin_unlock_irq(&phba->hbalock);
12337 /* Now, handle all the els xri abort events */
12338 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
12339 /* Get the first event from the head of the event queue */
12340 spin_lock_irq(&phba->hbalock);
12341 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
12342 cq_event, struct lpfc_cq_event, list);
12343 spin_unlock_irq(&phba->hbalock);
12344 /* Notify aborted XRI for ELS work queue */
12345 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
12346 /* Free the event processed back to the free pool */
12347 lpfc_sli4_cq_event_release(phba, cq_event);
12352 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
12353 * @phba: pointer to lpfc hba data structure
12354 * @pIocbIn: pointer to the rspiocbq
12355 * @pIocbOut: pointer to the cmdiocbq
12356 * @wcqe: pointer to the complete wcqe
12358 * This routine transfers the fields of a command iocbq to a response iocbq
12359 * by copying all the IOCB fields from command iocbq and transferring the
12360 * completion status information from the complete wcqe.
12362 static void
12363 lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
12364 struct lpfc_iocbq *pIocbIn,
12365 struct lpfc_iocbq *pIocbOut,
12366 struct lpfc_wcqe_complete *wcqe)
12368 int numBdes, i;
12369 unsigned long iflags;
12370 uint32_t status, max_response;
12371 struct lpfc_dmabuf *dmabuf;
12372 struct ulp_bde64 *bpl, bde;
12373 size_t offset = offsetof(struct lpfc_iocbq, iocb);
12375 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
12376 sizeof(struct lpfc_iocbq) - offset);
12377 /* Map WCQE parameters into irspiocb parameters */
12378 status = bf_get(lpfc_wcqe_c_status, wcqe);
12379 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
12380 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
12381 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
12382 pIocbIn->iocb.un.fcpi.fcpi_parm =
12383 pIocbOut->iocb.un.fcpi.fcpi_parm -
12384 wcqe->total_data_placed;
12385 else
12386 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
12387 else {
12388 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
12389 switch (pIocbOut->iocb.ulpCommand) {
12390 case CMD_ELS_REQUEST64_CR:
12391 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12392 bpl = (struct ulp_bde64 *)dmabuf->virt;
12393 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
12394 max_response = bde.tus.f.bdeSize;
12395 break;
12396 case CMD_GEN_REQUEST64_CR:
12397 max_response = 0;
12398 if (!pIocbOut->context3)
12399 break;
12400 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
12401 sizeof(struct ulp_bde64);
12402 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
12403 bpl = (struct ulp_bde64 *)dmabuf->virt;
12404 for (i = 0; i < numBdes; i++) {
12405 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
12406 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
12407 max_response += bde.tus.f.bdeSize;
12409 break;
12410 default:
12411 max_response = wcqe->total_data_placed;
12412 break;
12414 if (max_response < wcqe->total_data_placed)
12415 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
12416 else
12417 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
12418 wcqe->total_data_placed;
12421 /* Convert BG errors for completion status */
12422 if (status == CQE_STATUS_DI_ERROR) {
12423 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
12425 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
12426 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
12427 else
12428 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
12430 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
12431 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
12432 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12433 BGS_GUARD_ERR_MASK;
12434 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
12435 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12436 BGS_APPTAG_ERR_MASK;
12437 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
12438 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12439 BGS_REFTAG_ERR_MASK;
12441 /* Check to see if there was any good data before the error */
12442 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
12443 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12444 BGS_HI_WATER_MARK_PRESENT_MASK;
12445 pIocbIn->iocb.unsli3.sli3_bg.bghm =
12446 wcqe->total_data_placed;
12450 * Set ALL the error bits to indicate we don't know what
12451 * type of error it is.
12453 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
12454 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
12455 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
12456 BGS_GUARD_ERR_MASK);
12459 /* Pick up HBA exchange busy condition */
12460 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
12461 spin_lock_irqsave(&phba->hbalock, iflags);
12462 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
12463 spin_unlock_irqrestore(&phba->hbalock, iflags);
12468 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
12469 * @phba: Pointer to HBA context object.
12470 * @wcqe: Pointer to work-queue completion queue entry.
12472 * This routine handles an ELS work-queue completion event and construct
12473 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
12474 * discovery engine to handle.
12476 * Return: Pointer to the receive IOCBQ, NULL otherwise.
12478 static struct lpfc_iocbq *
12479 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
12480 struct lpfc_iocbq *irspiocbq)
12482 struct lpfc_sli_ring *pring;
12483 struct lpfc_iocbq *cmdiocbq;
12484 struct lpfc_wcqe_complete *wcqe;
12485 unsigned long iflags;
12487 pring = lpfc_phba_elsring(phba);
12488 if (unlikely(!pring))
12489 return NULL;
12491 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
12492 spin_lock_irqsave(&pring->ring_lock, iflags);
12493 pring->stats.iocb_event++;
12494 /* Look up the ELS command IOCB and create pseudo response IOCB */
12495 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
12496 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12497 if (unlikely(!cmdiocbq)) {
12498 spin_unlock_irqrestore(&pring->ring_lock, iflags);
12499 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12500 "0386 ELS complete with no corresponding "
12501 "cmdiocb: 0x%x 0x%x 0x%x 0x%x\n",
12502 wcqe->word0, wcqe->total_data_placed,
12503 wcqe->parameter, wcqe->word3);
12504 lpfc_sli_release_iocbq(phba, irspiocbq);
12505 return NULL;
12508 /* Put the iocb back on the txcmplq */
12509 lpfc_sli_ringtxcmpl_put(phba, pring, cmdiocbq);
12510 spin_unlock_irqrestore(&pring->ring_lock, iflags);
12512 /* Fake the irspiocbq and copy necessary response information */
12513 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
12515 return irspiocbq;
12518 inline struct lpfc_cq_event *
12519 lpfc_cq_event_setup(struct lpfc_hba *phba, void *entry, int size)
12521 struct lpfc_cq_event *cq_event;
12523 /* Allocate a new internal CQ_EVENT entry */
12524 cq_event = lpfc_sli4_cq_event_alloc(phba);
12525 if (!cq_event) {
12526 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12527 "0602 Failed to alloc CQ_EVENT entry\n");
12528 return NULL;
12531 /* Move the CQE into the event */
12532 memcpy(&cq_event->cqe, entry, size);
12533 return cq_event;
12537 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
12538 * @phba: Pointer to HBA context object.
12539 * @cqe: Pointer to mailbox completion queue entry.
12541 * This routine process a mailbox completion queue entry with asynchrous
12542 * event.
12544 * Return: true if work posted to worker thread, otherwise false.
12546 static bool
12547 lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
12549 struct lpfc_cq_event *cq_event;
12550 unsigned long iflags;
12552 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
12553 "0392 Async Event: word0:x%x, word1:x%x, "
12554 "word2:x%x, word3:x%x\n", mcqe->word0,
12555 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
12557 cq_event = lpfc_cq_event_setup(phba, mcqe, sizeof(struct lpfc_mcqe));
12558 if (!cq_event)
12559 return false;
12560 spin_lock_irqsave(&phba->hbalock, iflags);
12561 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
12562 /* Set the async event flag */
12563 phba->hba_flag |= ASYNC_EVENT;
12564 spin_unlock_irqrestore(&phba->hbalock, iflags);
12566 return true;
12570 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
12571 * @phba: Pointer to HBA context object.
12572 * @cqe: Pointer to mailbox completion queue entry.
12574 * This routine process a mailbox completion queue entry with mailbox
12575 * completion event.
12577 * Return: true if work posted to worker thread, otherwise false.
12579 static bool
12580 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
12582 uint32_t mcqe_status;
12583 MAILBOX_t *mbox, *pmbox;
12584 struct lpfc_mqe *mqe;
12585 struct lpfc_vport *vport;
12586 struct lpfc_nodelist *ndlp;
12587 struct lpfc_dmabuf *mp;
12588 unsigned long iflags;
12589 LPFC_MBOXQ_t *pmb;
12590 bool workposted = false;
12591 int rc;
12593 /* If not a mailbox complete MCQE, out by checking mailbox consume */
12594 if (!bf_get(lpfc_trailer_completed, mcqe))
12595 goto out_no_mqe_complete;
12597 /* Get the reference to the active mbox command */
12598 spin_lock_irqsave(&phba->hbalock, iflags);
12599 pmb = phba->sli.mbox_active;
12600 if (unlikely(!pmb)) {
12601 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
12602 "1832 No pending MBOX command to handle\n");
12603 spin_unlock_irqrestore(&phba->hbalock, iflags);
12604 goto out_no_mqe_complete;
12606 spin_unlock_irqrestore(&phba->hbalock, iflags);
12607 mqe = &pmb->u.mqe;
12608 pmbox = (MAILBOX_t *)&pmb->u.mqe;
12609 mbox = phba->mbox;
12610 vport = pmb->vport;
12612 /* Reset heartbeat timer */
12613 phba->last_completion_time = jiffies;
12614 del_timer(&phba->sli.mbox_tmo);
12616 /* Move mbox data to caller's mailbox region, do endian swapping */
12617 if (pmb->mbox_cmpl && mbox)
12618 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
12621 * For mcqe errors, conditionally move a modified error code to
12622 * the mbox so that the error will not be missed.
12624 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
12625 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
12626 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
12627 bf_set(lpfc_mqe_status, mqe,
12628 (LPFC_MBX_ERROR_RANGE | mcqe_status));
12630 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
12631 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
12632 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
12633 "MBOX dflt rpi: status:x%x rpi:x%x",
12634 mcqe_status,
12635 pmbox->un.varWords[0], 0);
12636 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
12637 mp = (struct lpfc_dmabuf *)(pmb->context1);
12638 ndlp = (struct lpfc_nodelist *)pmb->context2;
12639 /* Reg_LOGIN of dflt RPI was successful. Now lets get
12640 * RID of the PPI using the same mbox buffer.
12642 lpfc_unreg_login(phba, vport->vpi,
12643 pmbox->un.varWords[0], pmb);
12644 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
12645 pmb->context1 = mp;
12646 pmb->context2 = ndlp;
12647 pmb->vport = vport;
12648 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
12649 if (rc != MBX_BUSY)
12650 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
12651 LOG_SLI, "0385 rc should "
12652 "have been MBX_BUSY\n");
12653 if (rc != MBX_NOT_FINISHED)
12654 goto send_current_mbox;
12657 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
12658 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
12659 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
12661 /* There is mailbox completion work to do */
12662 spin_lock_irqsave(&phba->hbalock, iflags);
12663 __lpfc_mbox_cmpl_put(phba, pmb);
12664 phba->work_ha |= HA_MBATT;
12665 spin_unlock_irqrestore(&phba->hbalock, iflags);
12666 workposted = true;
12668 send_current_mbox:
12669 spin_lock_irqsave(&phba->hbalock, iflags);
12670 /* Release the mailbox command posting token */
12671 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
12672 /* Setting active mailbox pointer need to be in sync to flag clear */
12673 phba->sli.mbox_active = NULL;
12674 spin_unlock_irqrestore(&phba->hbalock, iflags);
12675 /* Wake up worker thread to post the next pending mailbox command */
12676 lpfc_worker_wake_up(phba);
12677 out_no_mqe_complete:
12678 if (bf_get(lpfc_trailer_consumed, mcqe))
12679 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
12680 return workposted;
12684 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
12685 * @phba: Pointer to HBA context object.
12686 * @cqe: Pointer to mailbox completion queue entry.
12688 * This routine process a mailbox completion queue entry, it invokes the
12689 * proper mailbox complete handling or asynchrous event handling routine
12690 * according to the MCQE's async bit.
12692 * Return: true if work posted to worker thread, otherwise false.
12694 static bool
12695 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
12697 struct lpfc_mcqe mcqe;
12698 bool workposted;
12700 /* Copy the mailbox MCQE and convert endian order as needed */
12701 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
12703 /* Invoke the proper event handling routine */
12704 if (!bf_get(lpfc_trailer_async, &mcqe))
12705 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
12706 else
12707 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
12708 return workposted;
12712 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
12713 * @phba: Pointer to HBA context object.
12714 * @cq: Pointer to associated CQ
12715 * @wcqe: Pointer to work-queue completion queue entry.
12717 * This routine handles an ELS work-queue completion event.
12719 * Return: true if work posted to worker thread, otherwise false.
12721 static bool
12722 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12723 struct lpfc_wcqe_complete *wcqe)
12725 struct lpfc_iocbq *irspiocbq;
12726 unsigned long iflags;
12727 struct lpfc_sli_ring *pring = cq->pring;
12728 int txq_cnt = 0;
12729 int txcmplq_cnt = 0;
12730 int fcp_txcmplq_cnt = 0;
12732 /* Get an irspiocbq for later ELS response processing use */
12733 irspiocbq = lpfc_sli_get_iocbq(phba);
12734 if (!irspiocbq) {
12735 if (!list_empty(&pring->txq))
12736 txq_cnt++;
12737 if (!list_empty(&pring->txcmplq))
12738 txcmplq_cnt++;
12739 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12740 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
12741 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
12742 txq_cnt, phba->iocb_cnt,
12743 fcp_txcmplq_cnt,
12744 txcmplq_cnt);
12745 return false;
12748 /* Save off the slow-path queue event for work thread to process */
12749 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
12750 spin_lock_irqsave(&phba->hbalock, iflags);
12751 list_add_tail(&irspiocbq->cq_event.list,
12752 &phba->sli4_hba.sp_queue_event);
12753 phba->hba_flag |= HBA_SP_QUEUE_EVT;
12754 spin_unlock_irqrestore(&phba->hbalock, iflags);
12756 return true;
12760 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
12761 * @phba: Pointer to HBA context object.
12762 * @wcqe: Pointer to work-queue completion queue entry.
12764 * This routine handles slow-path WQ entry consumed event by invoking the
12765 * proper WQ release routine to the slow-path WQ.
12767 static void
12768 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
12769 struct lpfc_wcqe_release *wcqe)
12771 /* sanity check on queue memory */
12772 if (unlikely(!phba->sli4_hba.els_wq))
12773 return;
12774 /* Check for the slow-path ELS work queue */
12775 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
12776 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
12777 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
12778 else
12779 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12780 "2579 Slow-path wqe consume event carries "
12781 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
12782 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
12783 phba->sli4_hba.els_wq->queue_id);
12787 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
12788 * @phba: Pointer to HBA context object.
12789 * @cq: Pointer to a WQ completion queue.
12790 * @wcqe: Pointer to work-queue completion queue entry.
12792 * This routine handles an XRI abort event.
12794 * Return: true if work posted to worker thread, otherwise false.
12796 static bool
12797 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
12798 struct lpfc_queue *cq,
12799 struct sli4_wcqe_xri_aborted *wcqe)
12801 bool workposted = false;
12802 struct lpfc_cq_event *cq_event;
12803 unsigned long iflags;
12805 switch (cq->subtype) {
12806 case LPFC_FCP:
12807 cq_event = lpfc_cq_event_setup(
12808 phba, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
12809 if (!cq_event)
12810 return false;
12811 spin_lock_irqsave(&phba->hbalock, iflags);
12812 list_add_tail(&cq_event->list,
12813 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
12814 /* Set the fcp xri abort event flag */
12815 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
12816 spin_unlock_irqrestore(&phba->hbalock, iflags);
12817 workposted = true;
12818 break;
12819 case LPFC_NVME_LS: /* NVME LS uses ELS resources */
12820 case LPFC_ELS:
12821 cq_event = lpfc_cq_event_setup(
12822 phba, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
12823 if (!cq_event)
12824 return false;
12825 spin_lock_irqsave(&phba->hbalock, iflags);
12826 list_add_tail(&cq_event->list,
12827 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
12828 /* Set the els xri abort event flag */
12829 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
12830 spin_unlock_irqrestore(&phba->hbalock, iflags);
12831 workposted = true;
12832 break;
12833 case LPFC_NVME:
12834 /* Notify aborted XRI for NVME work queue */
12835 if (phba->nvmet_support)
12836 lpfc_sli4_nvmet_xri_aborted(phba, wcqe);
12837 else
12838 lpfc_sli4_nvme_xri_aborted(phba, wcqe);
12840 workposted = false;
12841 break;
12842 default:
12843 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12844 "0603 Invalid CQ subtype %d: "
12845 "%08x %08x %08x %08x\n",
12846 cq->subtype, wcqe->word0, wcqe->parameter,
12847 wcqe->word2, wcqe->word3);
12848 workposted = false;
12849 break;
12851 return workposted;
12855 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
12856 * @phba: Pointer to HBA context object.
12857 * @rcqe: Pointer to receive-queue completion queue entry.
12859 * This routine process a receive-queue completion queue entry.
12861 * Return: true if work posted to worker thread, otherwise false.
12863 static bool
12864 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
12866 bool workposted = false;
12867 struct fc_frame_header *fc_hdr;
12868 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
12869 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
12870 struct lpfc_nvmet_tgtport *tgtp;
12871 struct hbq_dmabuf *dma_buf;
12872 uint32_t status, rq_id;
12873 unsigned long iflags;
12875 /* sanity check on queue memory */
12876 if (unlikely(!hrq) || unlikely(!drq))
12877 return workposted;
12879 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
12880 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
12881 else
12882 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
12883 if (rq_id != hrq->queue_id)
12884 goto out;
12886 status = bf_get(lpfc_rcqe_status, rcqe);
12887 switch (status) {
12888 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
12889 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12890 "2537 Receive Frame Truncated!!\n");
12891 case FC_STATUS_RQ_SUCCESS:
12892 spin_lock_irqsave(&phba->hbalock, iflags);
12893 lpfc_sli4_rq_release(hrq, drq);
12894 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
12895 if (!dma_buf) {
12896 hrq->RQ_no_buf_found++;
12897 spin_unlock_irqrestore(&phba->hbalock, iflags);
12898 goto out;
12900 hrq->RQ_rcv_buf++;
12901 hrq->RQ_buf_posted--;
12902 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
12904 /* If a NVME LS event (type 0x28), treat it as Fast path */
12905 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
12907 /* save off the frame for the word thread to process */
12908 list_add_tail(&dma_buf->cq_event.list,
12909 &phba->sli4_hba.sp_queue_event);
12910 /* Frame received */
12911 phba->hba_flag |= HBA_SP_QUEUE_EVT;
12912 spin_unlock_irqrestore(&phba->hbalock, iflags);
12913 workposted = true;
12914 break;
12915 case FC_STATUS_INSUFF_BUF_FRM_DISC:
12916 if (phba->nvmet_support) {
12917 tgtp = phba->targetport->private;
12918 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_NVME,
12919 "6402 RQE Error x%x, posted %d err_cnt "
12920 "%d: %x %x %x\n",
12921 status, hrq->RQ_buf_posted,
12922 hrq->RQ_no_posted_buf,
12923 atomic_read(&tgtp->rcv_fcp_cmd_in),
12924 atomic_read(&tgtp->rcv_fcp_cmd_out),
12925 atomic_read(&tgtp->xmt_fcp_release));
12927 /* fallthrough */
12929 case FC_STATUS_INSUFF_BUF_NEED_BUF:
12930 hrq->RQ_no_posted_buf++;
12931 /* Post more buffers if possible */
12932 spin_lock_irqsave(&phba->hbalock, iflags);
12933 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
12934 spin_unlock_irqrestore(&phba->hbalock, iflags);
12935 workposted = true;
12936 break;
12938 out:
12939 return workposted;
12943 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
12944 * @phba: Pointer to HBA context object.
12945 * @cq: Pointer to the completion queue.
12946 * @wcqe: Pointer to a completion queue entry.
12948 * This routine process a slow-path work-queue or receive queue completion queue
12949 * entry.
12951 * Return: true if work posted to worker thread, otherwise false.
12953 static bool
12954 lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12955 struct lpfc_cqe *cqe)
12957 struct lpfc_cqe cqevt;
12958 bool workposted = false;
12960 /* Copy the work queue CQE and convert endian order if needed */
12961 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
12963 /* Check and process for different type of WCQE and dispatch */
12964 switch (bf_get(lpfc_cqe_code, &cqevt)) {
12965 case CQE_CODE_COMPL_WQE:
12966 /* Process the WQ/RQ complete event */
12967 phba->last_completion_time = jiffies;
12968 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
12969 (struct lpfc_wcqe_complete *)&cqevt);
12970 break;
12971 case CQE_CODE_RELEASE_WQE:
12972 /* Process the WQ release event */
12973 lpfc_sli4_sp_handle_rel_wcqe(phba,
12974 (struct lpfc_wcqe_release *)&cqevt);
12975 break;
12976 case CQE_CODE_XRI_ABORTED:
12977 /* Process the WQ XRI abort event */
12978 phba->last_completion_time = jiffies;
12979 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
12980 (struct sli4_wcqe_xri_aborted *)&cqevt);
12981 break;
12982 case CQE_CODE_RECEIVE:
12983 case CQE_CODE_RECEIVE_V1:
12984 /* Process the RQ event */
12985 phba->last_completion_time = jiffies;
12986 workposted = lpfc_sli4_sp_handle_rcqe(phba,
12987 (struct lpfc_rcqe *)&cqevt);
12988 break;
12989 default:
12990 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12991 "0388 Not a valid WCQE code: x%x\n",
12992 bf_get(lpfc_cqe_code, &cqevt));
12993 break;
12995 return workposted;
12999 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
13000 * @phba: Pointer to HBA context object.
13001 * @eqe: Pointer to fast-path event queue entry.
13003 * This routine process a event queue entry from the slow-path event queue.
13004 * It will check the MajorCode and MinorCode to determine this is for a
13005 * completion event on a completion queue, if not, an error shall be logged
13006 * and just return. Otherwise, it will get to the corresponding completion
13007 * queue and process all the entries on that completion queue, rearm the
13008 * completion queue, and then return.
13011 static void
13012 lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
13013 struct lpfc_queue *speq)
13015 struct lpfc_queue *cq = NULL, *childq;
13016 uint16_t cqid;
13018 /* Get the reference to the corresponding CQ */
13019 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
13021 list_for_each_entry(childq, &speq->child_list, list) {
13022 if (childq->queue_id == cqid) {
13023 cq = childq;
13024 break;
13027 if (unlikely(!cq)) {
13028 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
13029 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13030 "0365 Slow-path CQ identifier "
13031 "(%d) does not exist\n", cqid);
13032 return;
13035 /* Save EQ associated with this CQ */
13036 cq->assoc_qp = speq;
13038 if (!queue_work(phba->wq, &cq->spwork))
13039 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13040 "0390 Cannot schedule soft IRQ "
13041 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
13042 cqid, cq->queue_id, smp_processor_id());
13046 * lpfc_sli4_sp_process_cq - Process a slow-path event queue entry
13047 * @phba: Pointer to HBA context object.
13049 * This routine process a event queue entry from the slow-path event queue.
13050 * It will check the MajorCode and MinorCode to determine this is for a
13051 * completion event on a completion queue, if not, an error shall be logged
13052 * and just return. Otherwise, it will get to the corresponding completion
13053 * queue and process all the entries on that completion queue, rearm the
13054 * completion queue, and then return.
13057 static void
13058 lpfc_sli4_sp_process_cq(struct work_struct *work)
13060 struct lpfc_queue *cq =
13061 container_of(work, struct lpfc_queue, spwork);
13062 struct lpfc_hba *phba = cq->phba;
13063 struct lpfc_cqe *cqe;
13064 bool workposted = false;
13065 int ccount = 0;
13067 /* Process all the entries to the CQ */
13068 switch (cq->type) {
13069 case LPFC_MCQ:
13070 while ((cqe = lpfc_sli4_cq_get(cq))) {
13071 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
13072 if (!(++ccount % cq->entry_repost))
13073 break;
13074 cq->CQ_mbox++;
13076 break;
13077 case LPFC_WCQ:
13078 while ((cqe = lpfc_sli4_cq_get(cq))) {
13079 if (cq->subtype == LPFC_FCP ||
13080 cq->subtype == LPFC_NVME) {
13081 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
13082 if (phba->ktime_on)
13083 cq->isr_timestamp = ktime_get_ns();
13084 else
13085 cq->isr_timestamp = 0;
13086 #endif
13087 workposted |= lpfc_sli4_fp_handle_cqe(phba, cq,
13088 cqe);
13089 } else {
13090 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
13091 cqe);
13093 if (!(++ccount % cq->entry_repost))
13094 break;
13097 /* Track the max number of CQEs processed in 1 EQ */
13098 if (ccount > cq->CQ_max_cqe)
13099 cq->CQ_max_cqe = ccount;
13100 break;
13101 default:
13102 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13103 "0370 Invalid completion queue type (%d)\n",
13104 cq->type);
13105 return;
13108 /* Catch the no cq entry condition, log an error */
13109 if (unlikely(ccount == 0))
13110 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13111 "0371 No entry from the CQ: identifier "
13112 "(x%x), type (%d)\n", cq->queue_id, cq->type);
13114 /* In any case, flash and re-arm the RCQ */
13115 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
13117 /* wake up worker thread if there are works to be done */
13118 if (workposted)
13119 lpfc_worker_wake_up(phba);
13123 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
13124 * @phba: Pointer to HBA context object.
13125 * @cq: Pointer to associated CQ
13126 * @wcqe: Pointer to work-queue completion queue entry.
13128 * This routine process a fast-path work queue completion entry from fast-path
13129 * event queue for FCP command response completion.
13131 static void
13132 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13133 struct lpfc_wcqe_complete *wcqe)
13135 struct lpfc_sli_ring *pring = cq->pring;
13136 struct lpfc_iocbq *cmdiocbq;
13137 struct lpfc_iocbq irspiocbq;
13138 unsigned long iflags;
13140 /* Check for response status */
13141 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
13142 /* If resource errors reported from HBA, reduce queue
13143 * depth of the SCSI device.
13145 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
13146 IOSTAT_LOCAL_REJECT)) &&
13147 ((wcqe->parameter & IOERR_PARAM_MASK) ==
13148 IOERR_NO_RESOURCES))
13149 phba->lpfc_rampdown_queue_depth(phba);
13151 /* Log the error status */
13152 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13153 "0373 FCP complete error: status=x%x, "
13154 "hw_status=x%x, total_data_specified=%d, "
13155 "parameter=x%x, word3=x%x\n",
13156 bf_get(lpfc_wcqe_c_status, wcqe),
13157 bf_get(lpfc_wcqe_c_hw_status, wcqe),
13158 wcqe->total_data_placed, wcqe->parameter,
13159 wcqe->word3);
13162 /* Look up the FCP command IOCB and create pseudo response IOCB */
13163 spin_lock_irqsave(&pring->ring_lock, iflags);
13164 pring->stats.iocb_event++;
13165 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
13166 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13167 spin_unlock_irqrestore(&pring->ring_lock, iflags);
13168 if (unlikely(!cmdiocbq)) {
13169 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13170 "0374 FCP complete with no corresponding "
13171 "cmdiocb: iotag (%d)\n",
13172 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13173 return;
13175 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
13176 cmdiocbq->isr_timestamp = cq->isr_timestamp;
13177 #endif
13178 if (cmdiocbq->iocb_cmpl == NULL) {
13179 if (cmdiocbq->wqe_cmpl) {
13180 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13181 spin_lock_irqsave(&phba->hbalock, iflags);
13182 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13183 spin_unlock_irqrestore(&phba->hbalock, iflags);
13186 /* Pass the cmd_iocb and the wcqe to the upper layer */
13187 (cmdiocbq->wqe_cmpl)(phba, cmdiocbq, wcqe);
13188 return;
13190 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13191 "0375 FCP cmdiocb not callback function "
13192 "iotag: (%d)\n",
13193 bf_get(lpfc_wcqe_c_request_tag, wcqe));
13194 return;
13197 /* Fake the irspiocb and copy necessary response information */
13198 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
13200 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
13201 spin_lock_irqsave(&phba->hbalock, iflags);
13202 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
13203 spin_unlock_irqrestore(&phba->hbalock, iflags);
13206 /* Pass the cmd_iocb and the rsp state to the upper layer */
13207 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
13211 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
13212 * @phba: Pointer to HBA context object.
13213 * @cq: Pointer to completion queue.
13214 * @wcqe: Pointer to work-queue completion queue entry.
13216 * This routine handles an fast-path WQ entry consumed event by invoking the
13217 * proper WQ release routine to the slow-path WQ.
13219 static void
13220 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13221 struct lpfc_wcqe_release *wcqe)
13223 struct lpfc_queue *childwq;
13224 bool wqid_matched = false;
13225 uint16_t hba_wqid;
13227 /* Check for fast-path FCP work queue release */
13228 hba_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
13229 list_for_each_entry(childwq, &cq->child_list, list) {
13230 if (childwq->queue_id == hba_wqid) {
13231 lpfc_sli4_wq_release(childwq,
13232 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
13233 wqid_matched = true;
13234 break;
13237 /* Report warning log message if no match found */
13238 if (wqid_matched != true)
13239 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13240 "2580 Fast-path wqe consume event carries "
13241 "miss-matched qid: wcqe-qid=x%x\n", hba_wqid);
13245 * lpfc_sli4_nvmet_handle_rcqe - Process a receive-queue completion queue entry
13246 * @phba: Pointer to HBA context object.
13247 * @rcqe: Pointer to receive-queue completion queue entry.
13249 * This routine process a receive-queue completion queue entry.
13251 * Return: true if work posted to worker thread, otherwise false.
13253 static bool
13254 lpfc_sli4_nvmet_handle_rcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13255 struct lpfc_rcqe *rcqe)
13257 bool workposted = false;
13258 struct lpfc_queue *hrq;
13259 struct lpfc_queue *drq;
13260 struct rqb_dmabuf *dma_buf;
13261 struct fc_frame_header *fc_hdr;
13262 struct lpfc_nvmet_tgtport *tgtp;
13263 uint32_t status, rq_id;
13264 unsigned long iflags;
13265 uint32_t fctl, idx;
13267 if ((phba->nvmet_support == 0) ||
13268 (phba->sli4_hba.nvmet_cqset == NULL))
13269 return workposted;
13271 idx = cq->queue_id - phba->sli4_hba.nvmet_cqset[0]->queue_id;
13272 hrq = phba->sli4_hba.nvmet_mrq_hdr[idx];
13273 drq = phba->sli4_hba.nvmet_mrq_data[idx];
13275 /* sanity check on queue memory */
13276 if (unlikely(!hrq) || unlikely(!drq))
13277 return workposted;
13279 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
13280 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
13281 else
13282 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
13284 if ((phba->nvmet_support == 0) ||
13285 (rq_id != hrq->queue_id))
13286 return workposted;
13288 status = bf_get(lpfc_rcqe_status, rcqe);
13289 switch (status) {
13290 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
13291 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13292 "6126 Receive Frame Truncated!!\n");
13293 /* Drop thru */
13294 case FC_STATUS_RQ_SUCCESS:
13295 spin_lock_irqsave(&phba->hbalock, iflags);
13296 lpfc_sli4_rq_release(hrq, drq);
13297 dma_buf = lpfc_sli_rqbuf_get(phba, hrq);
13298 if (!dma_buf) {
13299 hrq->RQ_no_buf_found++;
13300 spin_unlock_irqrestore(&phba->hbalock, iflags);
13301 goto out;
13303 spin_unlock_irqrestore(&phba->hbalock, iflags);
13304 hrq->RQ_rcv_buf++;
13305 hrq->RQ_buf_posted--;
13306 fc_hdr = (struct fc_frame_header *)dma_buf->hbuf.virt;
13308 /* Just some basic sanity checks on FCP Command frame */
13309 fctl = (fc_hdr->fh_f_ctl[0] << 16 |
13310 fc_hdr->fh_f_ctl[1] << 8 |
13311 fc_hdr->fh_f_ctl[2]);
13312 if (((fctl &
13313 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) !=
13314 (FC_FC_FIRST_SEQ | FC_FC_END_SEQ | FC_FC_SEQ_INIT)) ||
13315 (fc_hdr->fh_seq_cnt != 0)) /* 0 byte swapped is still 0 */
13316 goto drop;
13318 if (fc_hdr->fh_type == FC_TYPE_FCP) {
13319 dma_buf->bytes_recv = bf_get(lpfc_rcqe_length, rcqe);
13320 lpfc_nvmet_unsol_fcp_event(
13321 phba, idx, dma_buf,
13322 cq->isr_timestamp);
13323 return false;
13325 drop:
13326 lpfc_in_buf_free(phba, &dma_buf->dbuf);
13327 break;
13328 case FC_STATUS_INSUFF_BUF_FRM_DISC:
13329 if (phba->nvmet_support) {
13330 tgtp = phba->targetport->private;
13331 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_NVME,
13332 "6401 RQE Error x%x, posted %d err_cnt "
13333 "%d: %x %x %x\n",
13334 status, hrq->RQ_buf_posted,
13335 hrq->RQ_no_posted_buf,
13336 atomic_read(&tgtp->rcv_fcp_cmd_in),
13337 atomic_read(&tgtp->rcv_fcp_cmd_out),
13338 atomic_read(&tgtp->xmt_fcp_release));
13340 /* fallthrough */
13342 case FC_STATUS_INSUFF_BUF_NEED_BUF:
13343 hrq->RQ_no_posted_buf++;
13344 /* Post more buffers if possible */
13345 break;
13347 out:
13348 return workposted;
13352 * lpfc_sli4_fp_handle_cqe - Process fast-path work queue completion entry
13353 * @cq: Pointer to the completion queue.
13354 * @eqe: Pointer to fast-path completion queue entry.
13356 * This routine process a fast-path work queue completion entry from fast-path
13357 * event queue for FCP command response completion.
13359 static int
13360 lpfc_sli4_fp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
13361 struct lpfc_cqe *cqe)
13363 struct lpfc_wcqe_release wcqe;
13364 bool workposted = false;
13366 /* Copy the work queue CQE and convert endian order if needed */
13367 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
13369 /* Check and process for different type of WCQE and dispatch */
13370 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
13371 case CQE_CODE_COMPL_WQE:
13372 case CQE_CODE_NVME_ERSP:
13373 cq->CQ_wq++;
13374 /* Process the WQ complete event */
13375 phba->last_completion_time = jiffies;
13376 if ((cq->subtype == LPFC_FCP) || (cq->subtype == LPFC_NVME))
13377 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
13378 (struct lpfc_wcqe_complete *)&wcqe);
13379 if (cq->subtype == LPFC_NVME_LS)
13380 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
13381 (struct lpfc_wcqe_complete *)&wcqe);
13382 break;
13383 case CQE_CODE_RELEASE_WQE:
13384 cq->CQ_release_wqe++;
13385 /* Process the WQ release event */
13386 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
13387 (struct lpfc_wcqe_release *)&wcqe);
13388 break;
13389 case CQE_CODE_XRI_ABORTED:
13390 cq->CQ_xri_aborted++;
13391 /* Process the WQ XRI abort event */
13392 phba->last_completion_time = jiffies;
13393 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
13394 (struct sli4_wcqe_xri_aborted *)&wcqe);
13395 break;
13396 case CQE_CODE_RECEIVE_V1:
13397 case CQE_CODE_RECEIVE:
13398 phba->last_completion_time = jiffies;
13399 if (cq->subtype == LPFC_NVMET) {
13400 workposted = lpfc_sli4_nvmet_handle_rcqe(
13401 phba, cq, (struct lpfc_rcqe *)&wcqe);
13403 break;
13404 default:
13405 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13406 "0144 Not a valid CQE code: x%x\n",
13407 bf_get(lpfc_wcqe_c_code, &wcqe));
13408 break;
13410 return workposted;
13414 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
13415 * @phba: Pointer to HBA context object.
13416 * @eqe: Pointer to fast-path event queue entry.
13418 * This routine process a event queue entry from the fast-path event queue.
13419 * It will check the MajorCode and MinorCode to determine this is for a
13420 * completion event on a completion queue, if not, an error shall be logged
13421 * and just return. Otherwise, it will get to the corresponding completion
13422 * queue and process all the entries on the completion queue, rearm the
13423 * completion queue, and then return.
13425 static void
13426 lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
13427 uint32_t qidx)
13429 struct lpfc_queue *cq = NULL;
13430 uint16_t cqid, id;
13432 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
13433 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13434 "0366 Not a valid completion "
13435 "event: majorcode=x%x, minorcode=x%x\n",
13436 bf_get_le32(lpfc_eqe_major_code, eqe),
13437 bf_get_le32(lpfc_eqe_minor_code, eqe));
13438 return;
13441 /* Get the reference to the corresponding CQ */
13442 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
13444 if (phba->cfg_nvmet_mrq && phba->sli4_hba.nvmet_cqset) {
13445 id = phba->sli4_hba.nvmet_cqset[0]->queue_id;
13446 if ((cqid >= id) && (cqid < (id + phba->cfg_nvmet_mrq))) {
13447 /* Process NVMET unsol rcv */
13448 cq = phba->sli4_hba.nvmet_cqset[cqid - id];
13449 goto process_cq;
13453 if (phba->sli4_hba.nvme_cq_map &&
13454 (cqid == phba->sli4_hba.nvme_cq_map[qidx])) {
13455 /* Process NVME / NVMET command completion */
13456 cq = phba->sli4_hba.nvme_cq[qidx];
13457 goto process_cq;
13460 if (phba->sli4_hba.fcp_cq_map &&
13461 (cqid == phba->sli4_hba.fcp_cq_map[qidx])) {
13462 /* Process FCP command completion */
13463 cq = phba->sli4_hba.fcp_cq[qidx];
13464 goto process_cq;
13467 if (phba->sli4_hba.nvmels_cq &&
13468 (cqid == phba->sli4_hba.nvmels_cq->queue_id)) {
13469 /* Process NVME unsol rcv */
13470 cq = phba->sli4_hba.nvmels_cq;
13473 /* Otherwise this is a Slow path event */
13474 if (cq == NULL) {
13475 lpfc_sli4_sp_handle_eqe(phba, eqe, phba->sli4_hba.hba_eq[qidx]);
13476 return;
13479 process_cq:
13480 if (unlikely(cqid != cq->queue_id)) {
13481 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13482 "0368 Miss-matched fast-path completion "
13483 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
13484 cqid, cq->queue_id);
13485 return;
13488 /* Save EQ associated with this CQ */
13489 cq->assoc_qp = phba->sli4_hba.hba_eq[qidx];
13491 if (!queue_work(phba->wq, &cq->irqwork))
13492 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13493 "0363 Cannot schedule soft IRQ "
13494 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
13495 cqid, cq->queue_id, smp_processor_id());
13499 * lpfc_sli4_hba_process_cq - Process a fast-path event queue entry
13500 * @phba: Pointer to HBA context object.
13501 * @eqe: Pointer to fast-path event queue entry.
13503 * This routine process a event queue entry from the fast-path event queue.
13504 * It will check the MajorCode and MinorCode to determine this is for a
13505 * completion event on a completion queue, if not, an error shall be logged
13506 * and just return. Otherwise, it will get to the corresponding completion
13507 * queue and process all the entries on the completion queue, rearm the
13508 * completion queue, and then return.
13510 static void
13511 lpfc_sli4_hba_process_cq(struct work_struct *work)
13513 struct lpfc_queue *cq =
13514 container_of(work, struct lpfc_queue, irqwork);
13515 struct lpfc_hba *phba = cq->phba;
13516 struct lpfc_cqe *cqe;
13517 bool workposted = false;
13518 int ccount = 0;
13520 /* Process all the entries to the CQ */
13521 while ((cqe = lpfc_sli4_cq_get(cq))) {
13522 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
13523 if (phba->ktime_on)
13524 cq->isr_timestamp = ktime_get_ns();
13525 else
13526 cq->isr_timestamp = 0;
13527 #endif
13528 workposted |= lpfc_sli4_fp_handle_cqe(phba, cq, cqe);
13529 if (!(++ccount % cq->entry_repost))
13530 break;
13533 /* Track the max number of CQEs processed in 1 EQ */
13534 if (ccount > cq->CQ_max_cqe)
13535 cq->CQ_max_cqe = ccount;
13536 cq->assoc_qp->EQ_cqe_cnt += ccount;
13538 /* Catch the no cq entry condition */
13539 if (unlikely(ccount == 0))
13540 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13541 "0369 No entry from fast-path completion "
13542 "queue fcpcqid=%d\n", cq->queue_id);
13544 /* In any case, flash and re-arm the CQ */
13545 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
13547 /* wake up worker thread if there are works to be done */
13548 if (workposted)
13549 lpfc_worker_wake_up(phba);
13552 static void
13553 lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
13555 struct lpfc_eqe *eqe;
13557 /* walk all the EQ entries and drop on the floor */
13558 while ((eqe = lpfc_sli4_eq_get(eq)))
13561 /* Clear and re-arm the EQ */
13562 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
13567 * lpfc_sli4_fof_handle_eqe - Process a Flash Optimized Fabric event queue
13568 * entry
13569 * @phba: Pointer to HBA context object.
13570 * @eqe: Pointer to fast-path event queue entry.
13572 * This routine process a event queue entry from the Flash Optimized Fabric
13573 * event queue. It will check the MajorCode and MinorCode to determine this
13574 * is for a completion event on a completion queue, if not, an error shall be
13575 * logged and just return. Otherwise, it will get to the corresponding
13576 * completion queue and process all the entries on the completion queue, rearm
13577 * the completion queue, and then return.
13579 static void
13580 lpfc_sli4_fof_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
13582 struct lpfc_queue *cq;
13583 uint16_t cqid;
13585 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
13586 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13587 "9147 Not a valid completion "
13588 "event: majorcode=x%x, minorcode=x%x\n",
13589 bf_get_le32(lpfc_eqe_major_code, eqe),
13590 bf_get_le32(lpfc_eqe_minor_code, eqe));
13591 return;
13594 /* Get the reference to the corresponding CQ */
13595 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
13597 /* Next check for OAS */
13598 cq = phba->sli4_hba.oas_cq;
13599 if (unlikely(!cq)) {
13600 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
13601 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13602 "9148 OAS completion queue "
13603 "does not exist\n");
13604 return;
13607 if (unlikely(cqid != cq->queue_id)) {
13608 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13609 "9149 Miss-matched fast-path compl "
13610 "queue id: eqcqid=%d, fcpcqid=%d\n",
13611 cqid, cq->queue_id);
13612 return;
13615 /* Save EQ associated with this CQ */
13616 cq->assoc_qp = phba->sli4_hba.fof_eq;
13618 /* CQ work will be processed on CPU affinitized to this IRQ */
13619 if (!queue_work(phba->wq, &cq->irqwork))
13620 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13621 "0367 Cannot schedule soft IRQ "
13622 "for CQ eqcqid=%d, cqid=%d on CPU %d\n",
13623 cqid, cq->queue_id, smp_processor_id());
13627 * lpfc_sli4_fof_intr_handler - HBA interrupt handler to SLI-4 device
13628 * @irq: Interrupt number.
13629 * @dev_id: The device context pointer.
13631 * This function is directly called from the PCI layer as an interrupt
13632 * service routine when device with SLI-4 interface spec is enabled with
13633 * MSI-X multi-message interrupt mode and there is a Flash Optimized Fabric
13634 * IOCB ring event in the HBA. However, when the device is enabled with either
13635 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
13636 * device-level interrupt handler. When the PCI slot is in error recovery
13637 * or the HBA is undergoing initialization, the interrupt handler will not
13638 * process the interrupt. The Flash Optimized Fabric ring event are handled in
13639 * the intrrupt context. This function is called without any lock held.
13640 * It gets the hbalock to access and update SLI data structures. Note that,
13641 * the EQ to CQ are one-to-one map such that the EQ index is
13642 * equal to that of CQ index.
13644 * This function returns IRQ_HANDLED when interrupt is handled else it
13645 * returns IRQ_NONE.
13647 irqreturn_t
13648 lpfc_sli4_fof_intr_handler(int irq, void *dev_id)
13650 struct lpfc_hba *phba;
13651 struct lpfc_hba_eq_hdl *hba_eq_hdl;
13652 struct lpfc_queue *eq;
13653 struct lpfc_eqe *eqe;
13654 unsigned long iflag;
13655 int ecount = 0;
13657 /* Get the driver's phba structure from the dev_id */
13658 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
13659 phba = hba_eq_hdl->phba;
13661 if (unlikely(!phba))
13662 return IRQ_NONE;
13664 /* Get to the EQ struct associated with this vector */
13665 eq = phba->sli4_hba.fof_eq;
13666 if (unlikely(!eq))
13667 return IRQ_NONE;
13669 /* Check device state for handling interrupt */
13670 if (unlikely(lpfc_intr_state_check(phba))) {
13671 /* Check again for link_state with lock held */
13672 spin_lock_irqsave(&phba->hbalock, iflag);
13673 if (phba->link_state < LPFC_LINK_DOWN)
13674 /* Flush, clear interrupt, and rearm the EQ */
13675 lpfc_sli4_eq_flush(phba, eq);
13676 spin_unlock_irqrestore(&phba->hbalock, iflag);
13677 return IRQ_NONE;
13681 * Process all the event on FCP fast-path EQ
13683 while ((eqe = lpfc_sli4_eq_get(eq))) {
13684 lpfc_sli4_fof_handle_eqe(phba, eqe);
13685 if (!(++ecount % eq->entry_repost))
13686 break;
13687 eq->EQ_processed++;
13690 /* Track the max number of EQEs processed in 1 intr */
13691 if (ecount > eq->EQ_max_eqe)
13692 eq->EQ_max_eqe = ecount;
13695 if (unlikely(ecount == 0)) {
13696 eq->EQ_no_entry++;
13698 if (phba->intr_type == MSIX)
13699 /* MSI-X treated interrupt served as no EQ share INT */
13700 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13701 "9145 MSI-X interrupt with no EQE\n");
13702 else {
13703 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13704 "9146 ISR interrupt with no EQE\n");
13705 /* Non MSI-X treated on interrupt as EQ share INT */
13706 return IRQ_NONE;
13709 /* Always clear and re-arm the fast-path EQ */
13710 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
13711 return IRQ_HANDLED;
13715 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
13716 * @irq: Interrupt number.
13717 * @dev_id: The device context pointer.
13719 * This function is directly called from the PCI layer as an interrupt
13720 * service routine when device with SLI-4 interface spec is enabled with
13721 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
13722 * ring event in the HBA. However, when the device is enabled with either
13723 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
13724 * device-level interrupt handler. When the PCI slot is in error recovery
13725 * or the HBA is undergoing initialization, the interrupt handler will not
13726 * process the interrupt. The SCSI FCP fast-path ring event are handled in
13727 * the intrrupt context. This function is called without any lock held.
13728 * It gets the hbalock to access and update SLI data structures. Note that,
13729 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
13730 * equal to that of FCP CQ index.
13732 * The link attention and ELS ring attention events are handled
13733 * by the worker thread. The interrupt handler signals the worker thread
13734 * and returns for these events. This function is called without any lock
13735 * held. It gets the hbalock to access and update SLI data structures.
13737 * This function returns IRQ_HANDLED when interrupt is handled else it
13738 * returns IRQ_NONE.
13740 irqreturn_t
13741 lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
13743 struct lpfc_hba *phba;
13744 struct lpfc_hba_eq_hdl *hba_eq_hdl;
13745 struct lpfc_queue *fpeq;
13746 struct lpfc_eqe *eqe;
13747 unsigned long iflag;
13748 int ecount = 0;
13749 int hba_eqidx;
13751 /* Get the driver's phba structure from the dev_id */
13752 hba_eq_hdl = (struct lpfc_hba_eq_hdl *)dev_id;
13753 phba = hba_eq_hdl->phba;
13754 hba_eqidx = hba_eq_hdl->idx;
13756 if (unlikely(!phba))
13757 return IRQ_NONE;
13758 if (unlikely(!phba->sli4_hba.hba_eq))
13759 return IRQ_NONE;
13761 /* Get to the EQ struct associated with this vector */
13762 fpeq = phba->sli4_hba.hba_eq[hba_eqidx];
13763 if (unlikely(!fpeq))
13764 return IRQ_NONE;
13766 if (lpfc_fcp_look_ahead) {
13767 if (atomic_dec_and_test(&hba_eq_hdl->hba_eq_in_use))
13768 lpfc_sli4_eq_clr_intr(fpeq);
13769 else {
13770 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
13771 return IRQ_NONE;
13775 /* Check device state for handling interrupt */
13776 if (unlikely(lpfc_intr_state_check(phba))) {
13777 /* Check again for link_state with lock held */
13778 spin_lock_irqsave(&phba->hbalock, iflag);
13779 if (phba->link_state < LPFC_LINK_DOWN)
13780 /* Flush, clear interrupt, and rearm the EQ */
13781 lpfc_sli4_eq_flush(phba, fpeq);
13782 spin_unlock_irqrestore(&phba->hbalock, iflag);
13783 if (lpfc_fcp_look_ahead)
13784 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
13785 return IRQ_NONE;
13789 * Process all the event on FCP fast-path EQ
13791 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
13792 lpfc_sli4_hba_handle_eqe(phba, eqe, hba_eqidx);
13793 if (!(++ecount % fpeq->entry_repost))
13794 break;
13795 fpeq->EQ_processed++;
13798 /* Track the max number of EQEs processed in 1 intr */
13799 if (ecount > fpeq->EQ_max_eqe)
13800 fpeq->EQ_max_eqe = ecount;
13802 /* Always clear and re-arm the fast-path EQ */
13803 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
13805 if (unlikely(ecount == 0)) {
13806 fpeq->EQ_no_entry++;
13808 if (lpfc_fcp_look_ahead) {
13809 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
13810 return IRQ_NONE;
13813 if (phba->intr_type == MSIX)
13814 /* MSI-X treated interrupt served as no EQ share INT */
13815 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
13816 "0358 MSI-X interrupt with no EQE\n");
13817 else
13818 /* Non MSI-X treated on interrupt as EQ share INT */
13819 return IRQ_NONE;
13822 if (lpfc_fcp_look_ahead)
13823 atomic_inc(&hba_eq_hdl->hba_eq_in_use);
13825 return IRQ_HANDLED;
13826 } /* lpfc_sli4_fp_intr_handler */
13829 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
13830 * @irq: Interrupt number.
13831 * @dev_id: The device context pointer.
13833 * This function is the device-level interrupt handler to device with SLI-4
13834 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
13835 * interrupt mode is enabled and there is an event in the HBA which requires
13836 * driver attention. This function invokes the slow-path interrupt attention
13837 * handling function and fast-path interrupt attention handling function in
13838 * turn to process the relevant HBA attention events. This function is called
13839 * without any lock held. It gets the hbalock to access and update SLI data
13840 * structures.
13842 * This function returns IRQ_HANDLED when interrupt is handled, else it
13843 * returns IRQ_NONE.
13845 irqreturn_t
13846 lpfc_sli4_intr_handler(int irq, void *dev_id)
13848 struct lpfc_hba *phba;
13849 irqreturn_t hba_irq_rc;
13850 bool hba_handled = false;
13851 int qidx;
13853 /* Get the driver's phba structure from the dev_id */
13854 phba = (struct lpfc_hba *)dev_id;
13856 if (unlikely(!phba))
13857 return IRQ_NONE;
13860 * Invoke fast-path host attention interrupt handling as appropriate.
13862 for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) {
13863 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
13864 &phba->sli4_hba.hba_eq_hdl[qidx]);
13865 if (hba_irq_rc == IRQ_HANDLED)
13866 hba_handled |= true;
13869 if (phba->cfg_fof) {
13870 hba_irq_rc = lpfc_sli4_fof_intr_handler(irq,
13871 &phba->sli4_hba.hba_eq_hdl[qidx]);
13872 if (hba_irq_rc == IRQ_HANDLED)
13873 hba_handled |= true;
13876 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
13877 } /* lpfc_sli4_intr_handler */
13880 * lpfc_sli4_queue_free - free a queue structure and associated memory
13881 * @queue: The queue structure to free.
13883 * This function frees a queue structure and the DMAable memory used for
13884 * the host resident queue. This function must be called after destroying the
13885 * queue on the HBA.
13887 void
13888 lpfc_sli4_queue_free(struct lpfc_queue *queue)
13890 struct lpfc_dmabuf *dmabuf;
13892 if (!queue)
13893 return;
13895 while (!list_empty(&queue->page_list)) {
13896 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
13897 list);
13898 dma_free_coherent(&queue->phba->pcidev->dev, queue->page_size,
13899 dmabuf->virt, dmabuf->phys);
13900 kfree(dmabuf);
13902 if (queue->rqbp) {
13903 lpfc_free_rq_buffer(queue->phba, queue);
13904 kfree(queue->rqbp);
13907 if (!list_empty(&queue->wq_list))
13908 list_del(&queue->wq_list);
13910 kfree(queue);
13911 return;
13915 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
13916 * @phba: The HBA that this queue is being created on.
13917 * @page_size: The size of a queue page
13918 * @entry_size: The size of each queue entry for this queue.
13919 * @entry count: The number of entries that this queue will handle.
13921 * This function allocates a queue structure and the DMAable memory used for
13922 * the host resident queue. This function must be called before creating the
13923 * queue on the HBA.
13925 struct lpfc_queue *
13926 lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t page_size,
13927 uint32_t entry_size, uint32_t entry_count)
13929 struct lpfc_queue *queue;
13930 struct lpfc_dmabuf *dmabuf;
13931 int x, total_qe_count;
13932 void *dma_pointer;
13933 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13935 if (!phba->sli4_hba.pc_sli4_params.supported)
13936 hw_page_size = page_size;
13938 queue = kzalloc(sizeof(struct lpfc_queue) +
13939 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
13940 if (!queue)
13941 return NULL;
13942 queue->page_count = (ALIGN(entry_size * entry_count,
13943 hw_page_size))/hw_page_size;
13945 /* If needed, Adjust page count to match the max the adapter supports */
13946 if (queue->page_count > phba->sli4_hba.pc_sli4_params.wqpcnt)
13947 queue->page_count = phba->sli4_hba.pc_sli4_params.wqpcnt;
13949 INIT_LIST_HEAD(&queue->list);
13950 INIT_LIST_HEAD(&queue->wq_list);
13951 INIT_LIST_HEAD(&queue->page_list);
13952 INIT_LIST_HEAD(&queue->child_list);
13954 /* Set queue parameters now. If the system cannot provide memory
13955 * resources, the free routine needs to know what was allocated.
13957 queue->entry_size = entry_size;
13958 queue->entry_count = entry_count;
13959 queue->page_size = hw_page_size;
13960 queue->phba = phba;
13962 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
13963 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
13964 if (!dmabuf)
13965 goto out_fail;
13966 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
13967 hw_page_size, &dmabuf->phys,
13968 GFP_KERNEL);
13969 if (!dmabuf->virt) {
13970 kfree(dmabuf);
13971 goto out_fail;
13973 dmabuf->buffer_tag = x;
13974 list_add_tail(&dmabuf->list, &queue->page_list);
13975 /* initialize queue's entry array */
13976 dma_pointer = dmabuf->virt;
13977 for (; total_qe_count < entry_count &&
13978 dma_pointer < (hw_page_size + dmabuf->virt);
13979 total_qe_count++, dma_pointer += entry_size) {
13980 queue->qe[total_qe_count].address = dma_pointer;
13983 INIT_WORK(&queue->irqwork, lpfc_sli4_hba_process_cq);
13984 INIT_WORK(&queue->spwork, lpfc_sli4_sp_process_cq);
13986 /* entry_repost will be set during q creation */
13988 return queue;
13989 out_fail:
13990 lpfc_sli4_queue_free(queue);
13991 return NULL;
13995 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
13996 * @phba: HBA structure that indicates port to create a queue on.
13997 * @pci_barset: PCI BAR set flag.
13999 * This function shall perform iomap of the specified PCI BAR address to host
14000 * memory address if not already done so and return it. The returned host
14001 * memory address can be NULL.
14003 static void __iomem *
14004 lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
14006 if (!phba->pcidev)
14007 return NULL;
14009 switch (pci_barset) {
14010 case WQ_PCI_BAR_0_AND_1:
14011 return phba->pci_bar0_memmap_p;
14012 case WQ_PCI_BAR_2_AND_3:
14013 return phba->pci_bar2_memmap_p;
14014 case WQ_PCI_BAR_4_AND_5:
14015 return phba->pci_bar4_memmap_p;
14016 default:
14017 break;
14019 return NULL;
14023 * lpfc_modify_hba_eq_delay - Modify Delay Multiplier on FCP EQs
14024 * @phba: HBA structure that indicates port to create a queue on.
14025 * @startq: The starting FCP EQ to modify
14027 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
14028 * The command allows up to LPFC_MAX_EQ_DELAY_EQID_CNT EQ ID's to be
14029 * updated in one mailbox command.
14031 * The @phba struct is used to send mailbox command to HBA. The @startq
14032 * is used to get the starting FCP EQ to change.
14033 * This function is asynchronous and will wait for the mailbox
14034 * command to finish before continuing.
14036 * On success this function will return a zero. If unable to allocate enough
14037 * memory this function will return -ENOMEM. If the queue create mailbox command
14038 * fails this function will return -ENXIO.
14041 lpfc_modify_hba_eq_delay(struct lpfc_hba *phba, uint32_t startq,
14042 uint32_t numq, uint32_t imax)
14044 struct lpfc_mbx_modify_eq_delay *eq_delay;
14045 LPFC_MBOXQ_t *mbox;
14046 struct lpfc_queue *eq;
14047 int cnt, rc, length, status = 0;
14048 uint32_t shdr_status, shdr_add_status;
14049 uint32_t result, val;
14050 int qidx;
14051 union lpfc_sli4_cfg_shdr *shdr;
14052 uint16_t dmult;
14054 if (startq >= phba->io_channel_irqs)
14055 return 0;
14057 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14058 if (!mbox)
14059 return -ENOMEM;
14060 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
14061 sizeof(struct lpfc_sli4_cfg_mhdr));
14062 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14063 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
14064 length, LPFC_SLI4_MBX_EMBED);
14065 eq_delay = &mbox->u.mqe.un.eq_delay;
14067 /* Calculate delay multiper from maximum interrupt per second */
14068 result = imax / phba->io_channel_irqs;
14069 if (result > LPFC_DMULT_CONST || result == 0)
14070 dmult = 0;
14071 else
14072 dmult = LPFC_DMULT_CONST/result - 1;
14073 if (dmult > LPFC_DMULT_MAX)
14074 dmult = LPFC_DMULT_MAX;
14076 cnt = 0;
14077 for (qidx = startq; qidx < phba->io_channel_irqs; qidx++) {
14078 eq = phba->sli4_hba.hba_eq[qidx];
14079 if (!eq)
14080 continue;
14081 eq->q_mode = imax;
14082 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
14083 eq_delay->u.request.eq[cnt].phase = 0;
14084 eq_delay->u.request.eq[cnt].delay_multi = dmult;
14085 cnt++;
14087 /* q_mode is only used for auto_imax */
14088 if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) {
14089 /* Use EQ Delay Register method for q_mode */
14091 /* Convert for EQ Delay register */
14092 val = phba->cfg_fcp_imax;
14093 if (val) {
14094 /* First, interrupts per sec per EQ */
14095 val = phba->cfg_fcp_imax /
14096 phba->io_channel_irqs;
14098 /* us delay between each interrupt */
14099 val = LPFC_SEC_TO_USEC / val;
14101 eq->q_mode = val;
14102 } else {
14103 eq->q_mode = imax;
14106 if (cnt >= numq)
14107 break;
14109 eq_delay->u.request.num_eq = cnt;
14111 mbox->vport = phba->pport;
14112 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14113 mbox->context1 = NULL;
14114 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14115 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
14116 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14117 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14118 if (shdr_status || shdr_add_status || rc) {
14119 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14120 "2512 MODIFY_EQ_DELAY mailbox failed with "
14121 "status x%x add_status x%x, mbx status x%x\n",
14122 shdr_status, shdr_add_status, rc);
14123 status = -ENXIO;
14125 mempool_free(mbox, phba->mbox_mem_pool);
14126 return status;
14130 * lpfc_eq_create - Create an Event Queue on the HBA
14131 * @phba: HBA structure that indicates port to create a queue on.
14132 * @eq: The queue structure to use to create the event queue.
14133 * @imax: The maximum interrupt per second limit.
14135 * This function creates an event queue, as detailed in @eq, on a port,
14136 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
14138 * The @phba struct is used to send mailbox command to HBA. The @eq struct
14139 * is used to get the entry count and entry size that are necessary to
14140 * determine the number of pages to allocate and use for this queue. This
14141 * function will send the EQ_CREATE mailbox command to the HBA to setup the
14142 * event queue. This function is asynchronous and will wait for the mailbox
14143 * command to finish before continuing.
14145 * On success this function will return a zero. If unable to allocate enough
14146 * memory this function will return -ENOMEM. If the queue create mailbox command
14147 * fails this function will return -ENXIO.
14150 lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
14152 struct lpfc_mbx_eq_create *eq_create;
14153 LPFC_MBOXQ_t *mbox;
14154 int rc, length, status = 0;
14155 struct lpfc_dmabuf *dmabuf;
14156 uint32_t shdr_status, shdr_add_status;
14157 union lpfc_sli4_cfg_shdr *shdr;
14158 uint16_t dmult;
14159 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14161 /* sanity check on queue memory */
14162 if (!eq)
14163 return -ENODEV;
14164 if (!phba->sli4_hba.pc_sli4_params.supported)
14165 hw_page_size = SLI4_PAGE_SIZE;
14167 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14168 if (!mbox)
14169 return -ENOMEM;
14170 length = (sizeof(struct lpfc_mbx_eq_create) -
14171 sizeof(struct lpfc_sli4_cfg_mhdr));
14172 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14173 LPFC_MBOX_OPCODE_EQ_CREATE,
14174 length, LPFC_SLI4_MBX_EMBED);
14175 eq_create = &mbox->u.mqe.un.eq_create;
14176 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
14177 eq->page_count);
14178 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
14179 LPFC_EQE_SIZE);
14180 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
14181 /* don't setup delay multiplier using EQ_CREATE */
14182 dmult = 0;
14183 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
14184 dmult);
14185 switch (eq->entry_count) {
14186 default:
14187 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14188 "0360 Unsupported EQ count. (%d)\n",
14189 eq->entry_count);
14190 if (eq->entry_count < 256)
14191 return -EINVAL;
14192 /* otherwise default to smallest count (drop through) */
14193 case 256:
14194 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14195 LPFC_EQ_CNT_256);
14196 break;
14197 case 512:
14198 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14199 LPFC_EQ_CNT_512);
14200 break;
14201 case 1024:
14202 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14203 LPFC_EQ_CNT_1024);
14204 break;
14205 case 2048:
14206 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14207 LPFC_EQ_CNT_2048);
14208 break;
14209 case 4096:
14210 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
14211 LPFC_EQ_CNT_4096);
14212 break;
14214 list_for_each_entry(dmabuf, &eq->page_list, list) {
14215 memset(dmabuf->virt, 0, hw_page_size);
14216 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14217 putPaddrLow(dmabuf->phys);
14218 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14219 putPaddrHigh(dmabuf->phys);
14221 mbox->vport = phba->pport;
14222 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14223 mbox->context1 = NULL;
14224 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14225 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
14226 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14227 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14228 if (shdr_status || shdr_add_status || rc) {
14229 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14230 "2500 EQ_CREATE mailbox failed with "
14231 "status x%x add_status x%x, mbx status x%x\n",
14232 shdr_status, shdr_add_status, rc);
14233 status = -ENXIO;
14235 eq->type = LPFC_EQ;
14236 eq->subtype = LPFC_NONE;
14237 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
14238 if (eq->queue_id == 0xFFFF)
14239 status = -ENXIO;
14240 eq->host_index = 0;
14241 eq->hba_index = 0;
14242 eq->entry_repost = LPFC_EQ_REPOST;
14244 mempool_free(mbox, phba->mbox_mem_pool);
14245 return status;
14249 * lpfc_cq_create - Create a Completion Queue on the HBA
14250 * @phba: HBA structure that indicates port to create a queue on.
14251 * @cq: The queue structure to use to create the completion queue.
14252 * @eq: The event queue to bind this completion queue to.
14254 * This function creates a completion queue, as detailed in @wq, on a port,
14255 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
14257 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14258 * is used to get the entry count and entry size that are necessary to
14259 * determine the number of pages to allocate and use for this queue. The @eq
14260 * is used to indicate which event queue to bind this completion queue to. This
14261 * function will send the CQ_CREATE mailbox command to the HBA to setup the
14262 * completion queue. This function is asynchronous and will wait for the mailbox
14263 * command to finish before continuing.
14265 * On success this function will return a zero. If unable to allocate enough
14266 * memory this function will return -ENOMEM. If the queue create mailbox command
14267 * fails this function will return -ENXIO.
14270 lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
14271 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
14273 struct lpfc_mbx_cq_create *cq_create;
14274 struct lpfc_dmabuf *dmabuf;
14275 LPFC_MBOXQ_t *mbox;
14276 int rc, length, status = 0;
14277 uint32_t shdr_status, shdr_add_status;
14278 union lpfc_sli4_cfg_shdr *shdr;
14279 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14281 /* sanity check on queue memory */
14282 if (!cq || !eq)
14283 return -ENODEV;
14284 if (!phba->sli4_hba.pc_sli4_params.supported)
14285 hw_page_size = cq->page_size;
14287 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14288 if (!mbox)
14289 return -ENOMEM;
14290 length = (sizeof(struct lpfc_mbx_cq_create) -
14291 sizeof(struct lpfc_sli4_cfg_mhdr));
14292 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14293 LPFC_MBOX_OPCODE_CQ_CREATE,
14294 length, LPFC_SLI4_MBX_EMBED);
14295 cq_create = &mbox->u.mqe.un.cq_create;
14296 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
14297 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
14298 cq->page_count);
14299 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
14300 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
14301 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14302 phba->sli4_hba.pc_sli4_params.cqv);
14303 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
14304 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request,
14305 (cq->page_size / SLI4_PAGE_SIZE));
14306 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
14307 eq->queue_id);
14308 } else {
14309 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
14310 eq->queue_id);
14312 switch (cq->entry_count) {
14313 case 2048:
14314 case 4096:
14315 if (phba->sli4_hba.pc_sli4_params.cqv ==
14316 LPFC_Q_CREATE_VERSION_2) {
14317 cq_create->u.request.context.lpfc_cq_context_count =
14318 cq->entry_count;
14319 bf_set(lpfc_cq_context_count,
14320 &cq_create->u.request.context,
14321 LPFC_CQ_CNT_WORD7);
14322 break;
14324 /* Fall Thru */
14325 default:
14326 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14327 "0361 Unsupported CQ count: "
14328 "entry cnt %d sz %d pg cnt %d\n",
14329 cq->entry_count, cq->entry_size,
14330 cq->page_count);
14331 if (cq->entry_count < 256) {
14332 status = -EINVAL;
14333 goto out;
14335 /* otherwise default to smallest count (drop through) */
14336 case 256:
14337 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14338 LPFC_CQ_CNT_256);
14339 break;
14340 case 512:
14341 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14342 LPFC_CQ_CNT_512);
14343 break;
14344 case 1024:
14345 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
14346 LPFC_CQ_CNT_1024);
14347 break;
14349 list_for_each_entry(dmabuf, &cq->page_list, list) {
14350 memset(dmabuf->virt, 0, cq->page_size);
14351 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14352 putPaddrLow(dmabuf->phys);
14353 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14354 putPaddrHigh(dmabuf->phys);
14356 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14358 /* The IOCTL status is embedded in the mailbox subheader. */
14359 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14360 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14361 if (shdr_status || shdr_add_status || rc) {
14362 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14363 "2501 CQ_CREATE mailbox failed with "
14364 "status x%x add_status x%x, mbx status x%x\n",
14365 shdr_status, shdr_add_status, rc);
14366 status = -ENXIO;
14367 goto out;
14369 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
14370 if (cq->queue_id == 0xFFFF) {
14371 status = -ENXIO;
14372 goto out;
14374 /* link the cq onto the parent eq child list */
14375 list_add_tail(&cq->list, &eq->child_list);
14376 /* Set up completion queue's type and subtype */
14377 cq->type = type;
14378 cq->subtype = subtype;
14379 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
14380 cq->assoc_qid = eq->queue_id;
14381 cq->host_index = 0;
14382 cq->hba_index = 0;
14383 cq->entry_repost = LPFC_CQ_REPOST;
14385 out:
14386 mempool_free(mbox, phba->mbox_mem_pool);
14387 return status;
14391 * lpfc_cq_create_set - Create a set of Completion Queues on the HBA for MRQ
14392 * @phba: HBA structure that indicates port to create a queue on.
14393 * @cqp: The queue structure array to use to create the completion queues.
14394 * @eqp: The event queue array to bind these completion queues to.
14396 * This function creates a set of completion queue, s to support MRQ
14397 * as detailed in @cqp, on a port,
14398 * described by @phba by sending a CREATE_CQ_SET mailbox command to the HBA.
14400 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14401 * is used to get the entry count and entry size that are necessary to
14402 * determine the number of pages to allocate and use for this queue. The @eq
14403 * is used to indicate which event queue to bind this completion queue to. This
14404 * function will send the CREATE_CQ_SET mailbox command to the HBA to setup the
14405 * completion queue. This function is asynchronous and will wait for the mailbox
14406 * command to finish before continuing.
14408 * On success this function will return a zero. If unable to allocate enough
14409 * memory this function will return -ENOMEM. If the queue create mailbox command
14410 * fails this function will return -ENXIO.
14413 lpfc_cq_create_set(struct lpfc_hba *phba, struct lpfc_queue **cqp,
14414 struct lpfc_queue **eqp, uint32_t type, uint32_t subtype)
14416 struct lpfc_queue *cq;
14417 struct lpfc_queue *eq;
14418 struct lpfc_mbx_cq_create_set *cq_set;
14419 struct lpfc_dmabuf *dmabuf;
14420 LPFC_MBOXQ_t *mbox;
14421 int rc, length, alloclen, status = 0;
14422 int cnt, idx, numcq, page_idx = 0;
14423 uint32_t shdr_status, shdr_add_status;
14424 union lpfc_sli4_cfg_shdr *shdr;
14425 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14427 /* sanity check on queue memory */
14428 numcq = phba->cfg_nvmet_mrq;
14429 if (!cqp || !eqp || !numcq)
14430 return -ENODEV;
14432 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14433 if (!mbox)
14434 return -ENOMEM;
14436 length = sizeof(struct lpfc_mbx_cq_create_set);
14437 length += ((numcq * cqp[0]->page_count) *
14438 sizeof(struct dma_address));
14439 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14440 LPFC_MBOX_OPCODE_FCOE_CQ_CREATE_SET, length,
14441 LPFC_SLI4_MBX_NEMBED);
14442 if (alloclen < length) {
14443 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14444 "3098 Allocated DMA memory size (%d) is "
14445 "less than the requested DMA memory size "
14446 "(%d)\n", alloclen, length);
14447 status = -ENOMEM;
14448 goto out;
14450 cq_set = mbox->sge_array->addr[0];
14451 shdr = (union lpfc_sli4_cfg_shdr *)&cq_set->cfg_shdr;
14452 bf_set(lpfc_mbox_hdr_version, &shdr->request, 0);
14454 for (idx = 0; idx < numcq; idx++) {
14455 cq = cqp[idx];
14456 eq = eqp[idx];
14457 if (!cq || !eq) {
14458 status = -ENOMEM;
14459 goto out;
14461 if (!phba->sli4_hba.pc_sli4_params.supported)
14462 hw_page_size = cq->page_size;
14464 switch (idx) {
14465 case 0:
14466 bf_set(lpfc_mbx_cq_create_set_page_size,
14467 &cq_set->u.request,
14468 (hw_page_size / SLI4_PAGE_SIZE));
14469 bf_set(lpfc_mbx_cq_create_set_num_pages,
14470 &cq_set->u.request, cq->page_count);
14471 bf_set(lpfc_mbx_cq_create_set_evt,
14472 &cq_set->u.request, 1);
14473 bf_set(lpfc_mbx_cq_create_set_valid,
14474 &cq_set->u.request, 1);
14475 bf_set(lpfc_mbx_cq_create_set_cqe_size,
14476 &cq_set->u.request, 0);
14477 bf_set(lpfc_mbx_cq_create_set_num_cq,
14478 &cq_set->u.request, numcq);
14479 switch (cq->entry_count) {
14480 case 2048:
14481 case 4096:
14482 if (phba->sli4_hba.pc_sli4_params.cqv ==
14483 LPFC_Q_CREATE_VERSION_2) {
14484 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14485 &cq_set->u.request,
14486 cq->entry_count);
14487 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14488 &cq_set->u.request,
14489 LPFC_CQ_CNT_WORD7);
14490 break;
14492 /* Fall Thru */
14493 default:
14494 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14495 "3118 Bad CQ count. (%d)\n",
14496 cq->entry_count);
14497 if (cq->entry_count < 256) {
14498 status = -EINVAL;
14499 goto out;
14501 /* otherwise default to smallest (drop thru) */
14502 case 256:
14503 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14504 &cq_set->u.request, LPFC_CQ_CNT_256);
14505 break;
14506 case 512:
14507 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14508 &cq_set->u.request, LPFC_CQ_CNT_512);
14509 break;
14510 case 1024:
14511 bf_set(lpfc_mbx_cq_create_set_cqe_cnt,
14512 &cq_set->u.request, LPFC_CQ_CNT_1024);
14513 break;
14515 bf_set(lpfc_mbx_cq_create_set_eq_id0,
14516 &cq_set->u.request, eq->queue_id);
14517 break;
14518 case 1:
14519 bf_set(lpfc_mbx_cq_create_set_eq_id1,
14520 &cq_set->u.request, eq->queue_id);
14521 break;
14522 case 2:
14523 bf_set(lpfc_mbx_cq_create_set_eq_id2,
14524 &cq_set->u.request, eq->queue_id);
14525 break;
14526 case 3:
14527 bf_set(lpfc_mbx_cq_create_set_eq_id3,
14528 &cq_set->u.request, eq->queue_id);
14529 break;
14530 case 4:
14531 bf_set(lpfc_mbx_cq_create_set_eq_id4,
14532 &cq_set->u.request, eq->queue_id);
14533 break;
14534 case 5:
14535 bf_set(lpfc_mbx_cq_create_set_eq_id5,
14536 &cq_set->u.request, eq->queue_id);
14537 break;
14538 case 6:
14539 bf_set(lpfc_mbx_cq_create_set_eq_id6,
14540 &cq_set->u.request, eq->queue_id);
14541 break;
14542 case 7:
14543 bf_set(lpfc_mbx_cq_create_set_eq_id7,
14544 &cq_set->u.request, eq->queue_id);
14545 break;
14546 case 8:
14547 bf_set(lpfc_mbx_cq_create_set_eq_id8,
14548 &cq_set->u.request, eq->queue_id);
14549 break;
14550 case 9:
14551 bf_set(lpfc_mbx_cq_create_set_eq_id9,
14552 &cq_set->u.request, eq->queue_id);
14553 break;
14554 case 10:
14555 bf_set(lpfc_mbx_cq_create_set_eq_id10,
14556 &cq_set->u.request, eq->queue_id);
14557 break;
14558 case 11:
14559 bf_set(lpfc_mbx_cq_create_set_eq_id11,
14560 &cq_set->u.request, eq->queue_id);
14561 break;
14562 case 12:
14563 bf_set(lpfc_mbx_cq_create_set_eq_id12,
14564 &cq_set->u.request, eq->queue_id);
14565 break;
14566 case 13:
14567 bf_set(lpfc_mbx_cq_create_set_eq_id13,
14568 &cq_set->u.request, eq->queue_id);
14569 break;
14570 case 14:
14571 bf_set(lpfc_mbx_cq_create_set_eq_id14,
14572 &cq_set->u.request, eq->queue_id);
14573 break;
14574 case 15:
14575 bf_set(lpfc_mbx_cq_create_set_eq_id15,
14576 &cq_set->u.request, eq->queue_id);
14577 break;
14580 /* link the cq onto the parent eq child list */
14581 list_add_tail(&cq->list, &eq->child_list);
14582 /* Set up completion queue's type and subtype */
14583 cq->type = type;
14584 cq->subtype = subtype;
14585 cq->assoc_qid = eq->queue_id;
14586 cq->host_index = 0;
14587 cq->hba_index = 0;
14588 cq->entry_repost = LPFC_CQ_REPOST;
14589 cq->chann = idx;
14591 rc = 0;
14592 list_for_each_entry(dmabuf, &cq->page_list, list) {
14593 memset(dmabuf->virt, 0, hw_page_size);
14594 cnt = page_idx + dmabuf->buffer_tag;
14595 cq_set->u.request.page[cnt].addr_lo =
14596 putPaddrLow(dmabuf->phys);
14597 cq_set->u.request.page[cnt].addr_hi =
14598 putPaddrHigh(dmabuf->phys);
14599 rc++;
14601 page_idx += rc;
14604 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14606 /* The IOCTL status is embedded in the mailbox subheader. */
14607 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14608 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14609 if (shdr_status || shdr_add_status || rc) {
14610 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14611 "3119 CQ_CREATE_SET mailbox failed with "
14612 "status x%x add_status x%x, mbx status x%x\n",
14613 shdr_status, shdr_add_status, rc);
14614 status = -ENXIO;
14615 goto out;
14617 rc = bf_get(lpfc_mbx_cq_create_set_base_id, &cq_set->u.response);
14618 if (rc == 0xFFFF) {
14619 status = -ENXIO;
14620 goto out;
14623 for (idx = 0; idx < numcq; idx++) {
14624 cq = cqp[idx];
14625 cq->queue_id = rc + idx;
14628 out:
14629 lpfc_sli4_mbox_cmd_free(phba, mbox);
14630 return status;
14634 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
14635 * @phba: HBA structure that indicates port to create a queue on.
14636 * @mq: The queue structure to use to create the mailbox queue.
14637 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
14638 * @cq: The completion queue to associate with this cq.
14640 * This function provides failback (fb) functionality when the
14641 * mq_create_ext fails on older FW generations. It's purpose is identical
14642 * to mq_create_ext otherwise.
14644 * This routine cannot fail as all attributes were previously accessed and
14645 * initialized in mq_create_ext.
14647 static void
14648 lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
14649 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
14651 struct lpfc_mbx_mq_create *mq_create;
14652 struct lpfc_dmabuf *dmabuf;
14653 int length;
14655 length = (sizeof(struct lpfc_mbx_mq_create) -
14656 sizeof(struct lpfc_sli4_cfg_mhdr));
14657 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14658 LPFC_MBOX_OPCODE_MQ_CREATE,
14659 length, LPFC_SLI4_MBX_EMBED);
14660 mq_create = &mbox->u.mqe.un.mq_create;
14661 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
14662 mq->page_count);
14663 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
14664 cq->queue_id);
14665 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
14666 switch (mq->entry_count) {
14667 case 16:
14668 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
14669 LPFC_MQ_RING_SIZE_16);
14670 break;
14671 case 32:
14672 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
14673 LPFC_MQ_RING_SIZE_32);
14674 break;
14675 case 64:
14676 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
14677 LPFC_MQ_RING_SIZE_64);
14678 break;
14679 case 128:
14680 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
14681 LPFC_MQ_RING_SIZE_128);
14682 break;
14684 list_for_each_entry(dmabuf, &mq->page_list, list) {
14685 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
14686 putPaddrLow(dmabuf->phys);
14687 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
14688 putPaddrHigh(dmabuf->phys);
14693 * lpfc_mq_create - Create a mailbox Queue on the HBA
14694 * @phba: HBA structure that indicates port to create a queue on.
14695 * @mq: The queue structure to use to create the mailbox queue.
14696 * @cq: The completion queue to associate with this cq.
14697 * @subtype: The queue's subtype.
14699 * This function creates a mailbox queue, as detailed in @mq, on a port,
14700 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
14702 * The @phba struct is used to send mailbox command to HBA. The @cq struct
14703 * is used to get the entry count and entry size that are necessary to
14704 * determine the number of pages to allocate and use for this queue. This
14705 * function will send the MQ_CREATE mailbox command to the HBA to setup the
14706 * mailbox queue. This function is asynchronous and will wait for the mailbox
14707 * command to finish before continuing.
14709 * On success this function will return a zero. If unable to allocate enough
14710 * memory this function will return -ENOMEM. If the queue create mailbox command
14711 * fails this function will return -ENXIO.
14713 int32_t
14714 lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
14715 struct lpfc_queue *cq, uint32_t subtype)
14717 struct lpfc_mbx_mq_create *mq_create;
14718 struct lpfc_mbx_mq_create_ext *mq_create_ext;
14719 struct lpfc_dmabuf *dmabuf;
14720 LPFC_MBOXQ_t *mbox;
14721 int rc, length, status = 0;
14722 uint32_t shdr_status, shdr_add_status;
14723 union lpfc_sli4_cfg_shdr *shdr;
14724 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14726 /* sanity check on queue memory */
14727 if (!mq || !cq)
14728 return -ENODEV;
14729 if (!phba->sli4_hba.pc_sli4_params.supported)
14730 hw_page_size = SLI4_PAGE_SIZE;
14732 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14733 if (!mbox)
14734 return -ENOMEM;
14735 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
14736 sizeof(struct lpfc_sli4_cfg_mhdr));
14737 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14738 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
14739 length, LPFC_SLI4_MBX_EMBED);
14741 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
14742 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
14743 bf_set(lpfc_mbx_mq_create_ext_num_pages,
14744 &mq_create_ext->u.request, mq->page_count);
14745 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
14746 &mq_create_ext->u.request, 1);
14747 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
14748 &mq_create_ext->u.request, 1);
14749 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
14750 &mq_create_ext->u.request, 1);
14751 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
14752 &mq_create_ext->u.request, 1);
14753 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
14754 &mq_create_ext->u.request, 1);
14755 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
14756 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14757 phba->sli4_hba.pc_sli4_params.mqv);
14758 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
14759 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
14760 cq->queue_id);
14761 else
14762 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
14763 cq->queue_id);
14764 switch (mq->entry_count) {
14765 default:
14766 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14767 "0362 Unsupported MQ count. (%d)\n",
14768 mq->entry_count);
14769 if (mq->entry_count < 16) {
14770 status = -EINVAL;
14771 goto out;
14773 /* otherwise default to smallest count (drop through) */
14774 case 16:
14775 bf_set(lpfc_mq_context_ring_size,
14776 &mq_create_ext->u.request.context,
14777 LPFC_MQ_RING_SIZE_16);
14778 break;
14779 case 32:
14780 bf_set(lpfc_mq_context_ring_size,
14781 &mq_create_ext->u.request.context,
14782 LPFC_MQ_RING_SIZE_32);
14783 break;
14784 case 64:
14785 bf_set(lpfc_mq_context_ring_size,
14786 &mq_create_ext->u.request.context,
14787 LPFC_MQ_RING_SIZE_64);
14788 break;
14789 case 128:
14790 bf_set(lpfc_mq_context_ring_size,
14791 &mq_create_ext->u.request.context,
14792 LPFC_MQ_RING_SIZE_128);
14793 break;
14795 list_for_each_entry(dmabuf, &mq->page_list, list) {
14796 memset(dmabuf->virt, 0, hw_page_size);
14797 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
14798 putPaddrLow(dmabuf->phys);
14799 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
14800 putPaddrHigh(dmabuf->phys);
14802 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14803 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
14804 &mq_create_ext->u.response);
14805 if (rc != MBX_SUCCESS) {
14806 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14807 "2795 MQ_CREATE_EXT failed with "
14808 "status x%x. Failback to MQ_CREATE.\n",
14809 rc);
14810 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
14811 mq_create = &mbox->u.mqe.un.mq_create;
14812 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14813 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
14814 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
14815 &mq_create->u.response);
14818 /* The IOCTL status is embedded in the mailbox subheader. */
14819 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14820 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14821 if (shdr_status || shdr_add_status || rc) {
14822 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14823 "2502 MQ_CREATE mailbox failed with "
14824 "status x%x add_status x%x, mbx status x%x\n",
14825 shdr_status, shdr_add_status, rc);
14826 status = -ENXIO;
14827 goto out;
14829 if (mq->queue_id == 0xFFFF) {
14830 status = -ENXIO;
14831 goto out;
14833 mq->type = LPFC_MQ;
14834 mq->assoc_qid = cq->queue_id;
14835 mq->subtype = subtype;
14836 mq->host_index = 0;
14837 mq->hba_index = 0;
14838 mq->entry_repost = LPFC_MQ_REPOST;
14840 /* link the mq onto the parent cq child list */
14841 list_add_tail(&mq->list, &cq->child_list);
14842 out:
14843 mempool_free(mbox, phba->mbox_mem_pool);
14844 return status;
14848 * lpfc_wq_create - Create a Work Queue on the HBA
14849 * @phba: HBA structure that indicates port to create a queue on.
14850 * @wq: The queue structure to use to create the work queue.
14851 * @cq: The completion queue to bind this work queue to.
14852 * @subtype: The subtype of the work queue indicating its functionality.
14854 * This function creates a work queue, as detailed in @wq, on a port, described
14855 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
14857 * The @phba struct is used to send mailbox command to HBA. The @wq struct
14858 * is used to get the entry count and entry size that are necessary to
14859 * determine the number of pages to allocate and use for this queue. The @cq
14860 * is used to indicate which completion queue to bind this work queue to. This
14861 * function will send the WQ_CREATE mailbox command to the HBA to setup the
14862 * work queue. This function is asynchronous and will wait for the mailbox
14863 * command to finish before continuing.
14865 * On success this function will return a zero. If unable to allocate enough
14866 * memory this function will return -ENOMEM. If the queue create mailbox command
14867 * fails this function will return -ENXIO.
14870 lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
14871 struct lpfc_queue *cq, uint32_t subtype)
14873 struct lpfc_mbx_wq_create *wq_create;
14874 struct lpfc_dmabuf *dmabuf;
14875 LPFC_MBOXQ_t *mbox;
14876 int rc, length, status = 0;
14877 uint32_t shdr_status, shdr_add_status;
14878 union lpfc_sli4_cfg_shdr *shdr;
14879 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
14880 struct dma_address *page;
14881 void __iomem *bar_memmap_p;
14882 uint32_t db_offset;
14883 uint16_t pci_barset;
14884 uint8_t wq_create_version;
14886 /* sanity check on queue memory */
14887 if (!wq || !cq)
14888 return -ENODEV;
14889 if (!phba->sli4_hba.pc_sli4_params.supported)
14890 hw_page_size = wq->page_size;
14892 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14893 if (!mbox)
14894 return -ENOMEM;
14895 length = (sizeof(struct lpfc_mbx_wq_create) -
14896 sizeof(struct lpfc_sli4_cfg_mhdr));
14897 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14898 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
14899 length, LPFC_SLI4_MBX_EMBED);
14900 wq_create = &mbox->u.mqe.un.wq_create;
14901 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
14902 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
14903 wq->page_count);
14904 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
14905 cq->queue_id);
14907 /* wqv is the earliest version supported, NOT the latest */
14908 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14909 phba->sli4_hba.pc_sli4_params.wqv);
14911 if (phba->sli4_hba.pc_sli4_params.wqsize & LPFC_WQ_SZ128_SUPPORT)
14912 wq_create_version = LPFC_Q_CREATE_VERSION_1;
14913 else
14914 wq_create_version = LPFC_Q_CREATE_VERSION_0;
14916 switch (wq_create_version) {
14917 case LPFC_Q_CREATE_VERSION_0:
14918 switch (wq->entry_size) {
14919 default:
14920 case 64:
14921 /* Nothing to do, version 0 ONLY supports 64 byte */
14922 page = wq_create->u.request.page;
14923 break;
14924 case 128:
14925 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
14926 LPFC_WQ_SZ128_SUPPORT)) {
14927 status = -ERANGE;
14928 goto out;
14930 /* If we get here the HBA MUST also support V1 and
14931 * we MUST use it
14933 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14934 LPFC_Q_CREATE_VERSION_1);
14936 bf_set(lpfc_mbx_wq_create_wqe_count,
14937 &wq_create->u.request_1, wq->entry_count);
14938 bf_set(lpfc_mbx_wq_create_wqe_size,
14939 &wq_create->u.request_1,
14940 LPFC_WQ_WQE_SIZE_128);
14941 bf_set(lpfc_mbx_wq_create_page_size,
14942 &wq_create->u.request_1,
14943 LPFC_WQ_PAGE_SIZE_4096);
14944 page = wq_create->u.request_1.page;
14945 break;
14947 break;
14948 case LPFC_Q_CREATE_VERSION_1:
14949 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
14950 wq->entry_count);
14951 bf_set(lpfc_mbox_hdr_version, &shdr->request,
14952 LPFC_Q_CREATE_VERSION_1);
14954 switch (wq->entry_size) {
14955 default:
14956 case 64:
14957 bf_set(lpfc_mbx_wq_create_wqe_size,
14958 &wq_create->u.request_1,
14959 LPFC_WQ_WQE_SIZE_64);
14960 break;
14961 case 128:
14962 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
14963 LPFC_WQ_SZ128_SUPPORT)) {
14964 status = -ERANGE;
14965 goto out;
14967 bf_set(lpfc_mbx_wq_create_wqe_size,
14968 &wq_create->u.request_1,
14969 LPFC_WQ_WQE_SIZE_128);
14970 break;
14972 bf_set(lpfc_mbx_wq_create_page_size,
14973 &wq_create->u.request_1,
14974 (wq->page_size / SLI4_PAGE_SIZE));
14975 page = wq_create->u.request_1.page;
14976 break;
14977 default:
14978 status = -ERANGE;
14979 goto out;
14982 list_for_each_entry(dmabuf, &wq->page_list, list) {
14983 memset(dmabuf->virt, 0, hw_page_size);
14984 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
14985 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
14988 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
14989 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
14991 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14992 /* The IOCTL status is embedded in the mailbox subheader. */
14993 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14994 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14995 if (shdr_status || shdr_add_status || rc) {
14996 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14997 "2503 WQ_CREATE mailbox failed with "
14998 "status x%x add_status x%x, mbx status x%x\n",
14999 shdr_status, shdr_add_status, rc);
15000 status = -ENXIO;
15001 goto out;
15003 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
15004 if (wq->queue_id == 0xFFFF) {
15005 status = -ENXIO;
15006 goto out;
15008 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
15009 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
15010 &wq_create->u.response);
15011 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
15012 (wq->db_format != LPFC_DB_RING_FORMAT)) {
15013 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15014 "3265 WQ[%d] doorbell format not "
15015 "supported: x%x\n", wq->queue_id,
15016 wq->db_format);
15017 status = -EINVAL;
15018 goto out;
15020 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
15021 &wq_create->u.response);
15022 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
15023 if (!bar_memmap_p) {
15024 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15025 "3263 WQ[%d] failed to memmap pci "
15026 "barset:x%x\n", wq->queue_id,
15027 pci_barset);
15028 status = -ENOMEM;
15029 goto out;
15031 db_offset = wq_create->u.response.doorbell_offset;
15032 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
15033 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
15034 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15035 "3252 WQ[%d] doorbell offset not "
15036 "supported: x%x\n", wq->queue_id,
15037 db_offset);
15038 status = -EINVAL;
15039 goto out;
15041 wq->db_regaddr = bar_memmap_p + db_offset;
15042 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15043 "3264 WQ[%d]: barset:x%x, offset:x%x, "
15044 "format:x%x\n", wq->queue_id, pci_barset,
15045 db_offset, wq->db_format);
15046 } else {
15047 wq->db_format = LPFC_DB_LIST_FORMAT;
15048 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
15050 wq->pring = kzalloc(sizeof(struct lpfc_sli_ring), GFP_KERNEL);
15051 if (wq->pring == NULL) {
15052 status = -ENOMEM;
15053 goto out;
15055 wq->type = LPFC_WQ;
15056 wq->assoc_qid = cq->queue_id;
15057 wq->subtype = subtype;
15058 wq->host_index = 0;
15059 wq->hba_index = 0;
15060 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
15062 /* link the wq onto the parent cq child list */
15063 list_add_tail(&wq->list, &cq->child_list);
15064 out:
15065 mempool_free(mbox, phba->mbox_mem_pool);
15066 return status;
15070 * lpfc_rq_create - Create a Receive Queue on the HBA
15071 * @phba: HBA structure that indicates port to create a queue on.
15072 * @hrq: The queue structure to use to create the header receive queue.
15073 * @drq: The queue structure to use to create the data receive queue.
15074 * @cq: The completion queue to bind this work queue to.
15076 * This function creates a receive buffer queue pair , as detailed in @hrq and
15077 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
15078 * to the HBA.
15080 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
15081 * struct is used to get the entry count that is necessary to determine the
15082 * number of pages to use for this queue. The @cq is used to indicate which
15083 * completion queue to bind received buffers that are posted to these queues to.
15084 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
15085 * receive queue pair. This function is asynchronous and will wait for the
15086 * mailbox command to finish before continuing.
15088 * On success this function will return a zero. If unable to allocate enough
15089 * memory this function will return -ENOMEM. If the queue create mailbox command
15090 * fails this function will return -ENXIO.
15093 lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
15094 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
15096 struct lpfc_mbx_rq_create *rq_create;
15097 struct lpfc_dmabuf *dmabuf;
15098 LPFC_MBOXQ_t *mbox;
15099 int rc, length, status = 0;
15100 uint32_t shdr_status, shdr_add_status;
15101 union lpfc_sli4_cfg_shdr *shdr;
15102 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15103 void __iomem *bar_memmap_p;
15104 uint32_t db_offset;
15105 uint16_t pci_barset;
15107 /* sanity check on queue memory */
15108 if (!hrq || !drq || !cq)
15109 return -ENODEV;
15110 if (!phba->sli4_hba.pc_sli4_params.supported)
15111 hw_page_size = SLI4_PAGE_SIZE;
15113 if (hrq->entry_count != drq->entry_count)
15114 return -EINVAL;
15115 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15116 if (!mbox)
15117 return -ENOMEM;
15118 length = (sizeof(struct lpfc_mbx_rq_create) -
15119 sizeof(struct lpfc_sli4_cfg_mhdr));
15120 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15121 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
15122 length, LPFC_SLI4_MBX_EMBED);
15123 rq_create = &mbox->u.mqe.un.rq_create;
15124 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
15125 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15126 phba->sli4_hba.pc_sli4_params.rqv);
15127 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
15128 bf_set(lpfc_rq_context_rqe_count_1,
15129 &rq_create->u.request.context,
15130 hrq->entry_count);
15131 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
15132 bf_set(lpfc_rq_context_rqe_size,
15133 &rq_create->u.request.context,
15134 LPFC_RQE_SIZE_8);
15135 bf_set(lpfc_rq_context_page_size,
15136 &rq_create->u.request.context,
15137 LPFC_RQ_PAGE_SIZE_4096);
15138 } else {
15139 switch (hrq->entry_count) {
15140 default:
15141 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15142 "2535 Unsupported RQ count. (%d)\n",
15143 hrq->entry_count);
15144 if (hrq->entry_count < 512) {
15145 status = -EINVAL;
15146 goto out;
15148 /* otherwise default to smallest count (drop through) */
15149 case 512:
15150 bf_set(lpfc_rq_context_rqe_count,
15151 &rq_create->u.request.context,
15152 LPFC_RQ_RING_SIZE_512);
15153 break;
15154 case 1024:
15155 bf_set(lpfc_rq_context_rqe_count,
15156 &rq_create->u.request.context,
15157 LPFC_RQ_RING_SIZE_1024);
15158 break;
15159 case 2048:
15160 bf_set(lpfc_rq_context_rqe_count,
15161 &rq_create->u.request.context,
15162 LPFC_RQ_RING_SIZE_2048);
15163 break;
15164 case 4096:
15165 bf_set(lpfc_rq_context_rqe_count,
15166 &rq_create->u.request.context,
15167 LPFC_RQ_RING_SIZE_4096);
15168 break;
15170 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
15171 LPFC_HDR_BUF_SIZE);
15173 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
15174 cq->queue_id);
15175 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
15176 hrq->page_count);
15177 list_for_each_entry(dmabuf, &hrq->page_list, list) {
15178 memset(dmabuf->virt, 0, hw_page_size);
15179 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15180 putPaddrLow(dmabuf->phys);
15181 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15182 putPaddrHigh(dmabuf->phys);
15184 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15185 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
15187 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15188 /* The IOCTL status is embedded in the mailbox subheader. */
15189 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15190 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15191 if (shdr_status || shdr_add_status || rc) {
15192 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15193 "2504 RQ_CREATE mailbox failed with "
15194 "status x%x add_status x%x, mbx status x%x\n",
15195 shdr_status, shdr_add_status, rc);
15196 status = -ENXIO;
15197 goto out;
15199 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15200 if (hrq->queue_id == 0xFFFF) {
15201 status = -ENXIO;
15202 goto out;
15205 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
15206 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
15207 &rq_create->u.response);
15208 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
15209 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
15210 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15211 "3262 RQ [%d] doorbell format not "
15212 "supported: x%x\n", hrq->queue_id,
15213 hrq->db_format);
15214 status = -EINVAL;
15215 goto out;
15218 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
15219 &rq_create->u.response);
15220 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
15221 if (!bar_memmap_p) {
15222 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15223 "3269 RQ[%d] failed to memmap pci "
15224 "barset:x%x\n", hrq->queue_id,
15225 pci_barset);
15226 status = -ENOMEM;
15227 goto out;
15230 db_offset = rq_create->u.response.doorbell_offset;
15231 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
15232 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
15233 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15234 "3270 RQ[%d] doorbell offset not "
15235 "supported: x%x\n", hrq->queue_id,
15236 db_offset);
15237 status = -EINVAL;
15238 goto out;
15240 hrq->db_regaddr = bar_memmap_p + db_offset;
15241 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
15242 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
15243 "format:x%x\n", hrq->queue_id, pci_barset,
15244 db_offset, hrq->db_format);
15245 } else {
15246 hrq->db_format = LPFC_DB_RING_FORMAT;
15247 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
15249 hrq->type = LPFC_HRQ;
15250 hrq->assoc_qid = cq->queue_id;
15251 hrq->subtype = subtype;
15252 hrq->host_index = 0;
15253 hrq->hba_index = 0;
15254 hrq->entry_repost = LPFC_RQ_REPOST;
15256 /* now create the data queue */
15257 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15258 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
15259 length, LPFC_SLI4_MBX_EMBED);
15260 bf_set(lpfc_mbox_hdr_version, &shdr->request,
15261 phba->sli4_hba.pc_sli4_params.rqv);
15262 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
15263 bf_set(lpfc_rq_context_rqe_count_1,
15264 &rq_create->u.request.context, hrq->entry_count);
15265 if (subtype == LPFC_NVMET)
15266 rq_create->u.request.context.buffer_size =
15267 LPFC_NVMET_DATA_BUF_SIZE;
15268 else
15269 rq_create->u.request.context.buffer_size =
15270 LPFC_DATA_BUF_SIZE;
15271 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
15272 LPFC_RQE_SIZE_8);
15273 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
15274 (PAGE_SIZE/SLI4_PAGE_SIZE));
15275 } else {
15276 switch (drq->entry_count) {
15277 default:
15278 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15279 "2536 Unsupported RQ count. (%d)\n",
15280 drq->entry_count);
15281 if (drq->entry_count < 512) {
15282 status = -EINVAL;
15283 goto out;
15285 /* otherwise default to smallest count (drop through) */
15286 case 512:
15287 bf_set(lpfc_rq_context_rqe_count,
15288 &rq_create->u.request.context,
15289 LPFC_RQ_RING_SIZE_512);
15290 break;
15291 case 1024:
15292 bf_set(lpfc_rq_context_rqe_count,
15293 &rq_create->u.request.context,
15294 LPFC_RQ_RING_SIZE_1024);
15295 break;
15296 case 2048:
15297 bf_set(lpfc_rq_context_rqe_count,
15298 &rq_create->u.request.context,
15299 LPFC_RQ_RING_SIZE_2048);
15300 break;
15301 case 4096:
15302 bf_set(lpfc_rq_context_rqe_count,
15303 &rq_create->u.request.context,
15304 LPFC_RQ_RING_SIZE_4096);
15305 break;
15307 if (subtype == LPFC_NVMET)
15308 bf_set(lpfc_rq_context_buf_size,
15309 &rq_create->u.request.context,
15310 LPFC_NVMET_DATA_BUF_SIZE);
15311 else
15312 bf_set(lpfc_rq_context_buf_size,
15313 &rq_create->u.request.context,
15314 LPFC_DATA_BUF_SIZE);
15316 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
15317 cq->queue_id);
15318 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
15319 drq->page_count);
15320 list_for_each_entry(dmabuf, &drq->page_list, list) {
15321 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
15322 putPaddrLow(dmabuf->phys);
15323 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
15324 putPaddrHigh(dmabuf->phys);
15326 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
15327 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
15328 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15329 /* The IOCTL status is embedded in the mailbox subheader. */
15330 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
15331 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15332 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15333 if (shdr_status || shdr_add_status || rc) {
15334 status = -ENXIO;
15335 goto out;
15337 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15338 if (drq->queue_id == 0xFFFF) {
15339 status = -ENXIO;
15340 goto out;
15342 drq->type = LPFC_DRQ;
15343 drq->assoc_qid = cq->queue_id;
15344 drq->subtype = subtype;
15345 drq->host_index = 0;
15346 drq->hba_index = 0;
15347 drq->entry_repost = LPFC_RQ_REPOST;
15349 /* link the header and data RQs onto the parent cq child list */
15350 list_add_tail(&hrq->list, &cq->child_list);
15351 list_add_tail(&drq->list, &cq->child_list);
15353 out:
15354 mempool_free(mbox, phba->mbox_mem_pool);
15355 return status;
15359 * lpfc_mrq_create - Create MRQ Receive Queues on the HBA
15360 * @phba: HBA structure that indicates port to create a queue on.
15361 * @hrqp: The queue structure array to use to create the header receive queues.
15362 * @drqp: The queue structure array to use to create the data receive queues.
15363 * @cqp: The completion queue array to bind these receive queues to.
15365 * This function creates a receive buffer queue pair , as detailed in @hrq and
15366 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
15367 * to the HBA.
15369 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
15370 * struct is used to get the entry count that is necessary to determine the
15371 * number of pages to use for this queue. The @cq is used to indicate which
15372 * completion queue to bind received buffers that are posted to these queues to.
15373 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
15374 * receive queue pair. This function is asynchronous and will wait for the
15375 * mailbox command to finish before continuing.
15377 * On success this function will return a zero. If unable to allocate enough
15378 * memory this function will return -ENOMEM. If the queue create mailbox command
15379 * fails this function will return -ENXIO.
15382 lpfc_mrq_create(struct lpfc_hba *phba, struct lpfc_queue **hrqp,
15383 struct lpfc_queue **drqp, struct lpfc_queue **cqp,
15384 uint32_t subtype)
15386 struct lpfc_queue *hrq, *drq, *cq;
15387 struct lpfc_mbx_rq_create_v2 *rq_create;
15388 struct lpfc_dmabuf *dmabuf;
15389 LPFC_MBOXQ_t *mbox;
15390 int rc, length, alloclen, status = 0;
15391 int cnt, idx, numrq, page_idx = 0;
15392 uint32_t shdr_status, shdr_add_status;
15393 union lpfc_sli4_cfg_shdr *shdr;
15394 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
15396 numrq = phba->cfg_nvmet_mrq;
15397 /* sanity check on array memory */
15398 if (!hrqp || !drqp || !cqp || !numrq)
15399 return -ENODEV;
15400 if (!phba->sli4_hba.pc_sli4_params.supported)
15401 hw_page_size = SLI4_PAGE_SIZE;
15403 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15404 if (!mbox)
15405 return -ENOMEM;
15407 length = sizeof(struct lpfc_mbx_rq_create_v2);
15408 length += ((2 * numrq * hrqp[0]->page_count) *
15409 sizeof(struct dma_address));
15411 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15412 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE, length,
15413 LPFC_SLI4_MBX_NEMBED);
15414 if (alloclen < length) {
15415 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15416 "3099 Allocated DMA memory size (%d) is "
15417 "less than the requested DMA memory size "
15418 "(%d)\n", alloclen, length);
15419 status = -ENOMEM;
15420 goto out;
15425 rq_create = mbox->sge_array->addr[0];
15426 shdr = (union lpfc_sli4_cfg_shdr *)&rq_create->cfg_shdr;
15428 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_Q_CREATE_VERSION_2);
15429 cnt = 0;
15431 for (idx = 0; idx < numrq; idx++) {
15432 hrq = hrqp[idx];
15433 drq = drqp[idx];
15434 cq = cqp[idx];
15436 /* sanity check on queue memory */
15437 if (!hrq || !drq || !cq) {
15438 status = -ENODEV;
15439 goto out;
15442 if (hrq->entry_count != drq->entry_count) {
15443 status = -EINVAL;
15444 goto out;
15447 if (idx == 0) {
15448 bf_set(lpfc_mbx_rq_create_num_pages,
15449 &rq_create->u.request,
15450 hrq->page_count);
15451 bf_set(lpfc_mbx_rq_create_rq_cnt,
15452 &rq_create->u.request, (numrq * 2));
15453 bf_set(lpfc_mbx_rq_create_dnb, &rq_create->u.request,
15455 bf_set(lpfc_rq_context_base_cq,
15456 &rq_create->u.request.context,
15457 cq->queue_id);
15458 bf_set(lpfc_rq_context_data_size,
15459 &rq_create->u.request.context,
15460 LPFC_NVMET_DATA_BUF_SIZE);
15461 bf_set(lpfc_rq_context_hdr_size,
15462 &rq_create->u.request.context,
15463 LPFC_HDR_BUF_SIZE);
15464 bf_set(lpfc_rq_context_rqe_count_1,
15465 &rq_create->u.request.context,
15466 hrq->entry_count);
15467 bf_set(lpfc_rq_context_rqe_size,
15468 &rq_create->u.request.context,
15469 LPFC_RQE_SIZE_8);
15470 bf_set(lpfc_rq_context_page_size,
15471 &rq_create->u.request.context,
15472 (PAGE_SIZE/SLI4_PAGE_SIZE));
15474 rc = 0;
15475 list_for_each_entry(dmabuf, &hrq->page_list, list) {
15476 memset(dmabuf->virt, 0, hw_page_size);
15477 cnt = page_idx + dmabuf->buffer_tag;
15478 rq_create->u.request.page[cnt].addr_lo =
15479 putPaddrLow(dmabuf->phys);
15480 rq_create->u.request.page[cnt].addr_hi =
15481 putPaddrHigh(dmabuf->phys);
15482 rc++;
15484 page_idx += rc;
15486 rc = 0;
15487 list_for_each_entry(dmabuf, &drq->page_list, list) {
15488 memset(dmabuf->virt, 0, hw_page_size);
15489 cnt = page_idx + dmabuf->buffer_tag;
15490 rq_create->u.request.page[cnt].addr_lo =
15491 putPaddrLow(dmabuf->phys);
15492 rq_create->u.request.page[cnt].addr_hi =
15493 putPaddrHigh(dmabuf->phys);
15494 rc++;
15496 page_idx += rc;
15498 hrq->db_format = LPFC_DB_RING_FORMAT;
15499 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
15500 hrq->type = LPFC_HRQ;
15501 hrq->assoc_qid = cq->queue_id;
15502 hrq->subtype = subtype;
15503 hrq->host_index = 0;
15504 hrq->hba_index = 0;
15505 hrq->entry_repost = LPFC_RQ_REPOST;
15507 drq->db_format = LPFC_DB_RING_FORMAT;
15508 drq->db_regaddr = phba->sli4_hba.RQDBregaddr;
15509 drq->type = LPFC_DRQ;
15510 drq->assoc_qid = cq->queue_id;
15511 drq->subtype = subtype;
15512 drq->host_index = 0;
15513 drq->hba_index = 0;
15514 drq->entry_repost = LPFC_RQ_REPOST;
15516 list_add_tail(&hrq->list, &cq->child_list);
15517 list_add_tail(&drq->list, &cq->child_list);
15520 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15521 /* The IOCTL status is embedded in the mailbox subheader. */
15522 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15523 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15524 if (shdr_status || shdr_add_status || rc) {
15525 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15526 "3120 RQ_CREATE mailbox failed with "
15527 "status x%x add_status x%x, mbx status x%x\n",
15528 shdr_status, shdr_add_status, rc);
15529 status = -ENXIO;
15530 goto out;
15532 rc = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
15533 if (rc == 0xFFFF) {
15534 status = -ENXIO;
15535 goto out;
15538 /* Initialize all RQs with associated queue id */
15539 for (idx = 0; idx < numrq; idx++) {
15540 hrq = hrqp[idx];
15541 hrq->queue_id = rc + (2 * idx);
15542 drq = drqp[idx];
15543 drq->queue_id = rc + (2 * idx) + 1;
15546 out:
15547 lpfc_sli4_mbox_cmd_free(phba, mbox);
15548 return status;
15552 * lpfc_eq_destroy - Destroy an event Queue on the HBA
15553 * @eq: The queue structure associated with the queue to destroy.
15555 * This function destroys a queue, as detailed in @eq by sending an mailbox
15556 * command, specific to the type of queue, to the HBA.
15558 * The @eq struct is used to get the queue ID of the queue to destroy.
15560 * On success this function will return a zero. If the queue destroy mailbox
15561 * command fails this function will return -ENXIO.
15564 lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
15566 LPFC_MBOXQ_t *mbox;
15567 int rc, length, status = 0;
15568 uint32_t shdr_status, shdr_add_status;
15569 union lpfc_sli4_cfg_shdr *shdr;
15571 /* sanity check on queue memory */
15572 if (!eq)
15573 return -ENODEV;
15574 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
15575 if (!mbox)
15576 return -ENOMEM;
15577 length = (sizeof(struct lpfc_mbx_eq_destroy) -
15578 sizeof(struct lpfc_sli4_cfg_mhdr));
15579 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15580 LPFC_MBOX_OPCODE_EQ_DESTROY,
15581 length, LPFC_SLI4_MBX_EMBED);
15582 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
15583 eq->queue_id);
15584 mbox->vport = eq->phba->pport;
15585 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15587 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
15588 /* The IOCTL status is embedded in the mailbox subheader. */
15589 shdr = (union lpfc_sli4_cfg_shdr *)
15590 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
15591 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15592 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15593 if (shdr_status || shdr_add_status || rc) {
15594 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15595 "2505 EQ_DESTROY mailbox failed with "
15596 "status x%x add_status x%x, mbx status x%x\n",
15597 shdr_status, shdr_add_status, rc);
15598 status = -ENXIO;
15601 /* Remove eq from any list */
15602 list_del_init(&eq->list);
15603 mempool_free(mbox, eq->phba->mbox_mem_pool);
15604 return status;
15608 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
15609 * @cq: The queue structure associated with the queue to destroy.
15611 * This function destroys a queue, as detailed in @cq by sending an mailbox
15612 * command, specific to the type of queue, to the HBA.
15614 * The @cq struct is used to get the queue ID of the queue to destroy.
15616 * On success this function will return a zero. If the queue destroy mailbox
15617 * command fails this function will return -ENXIO.
15620 lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
15622 LPFC_MBOXQ_t *mbox;
15623 int rc, length, status = 0;
15624 uint32_t shdr_status, shdr_add_status;
15625 union lpfc_sli4_cfg_shdr *shdr;
15627 /* sanity check on queue memory */
15628 if (!cq)
15629 return -ENODEV;
15630 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
15631 if (!mbox)
15632 return -ENOMEM;
15633 length = (sizeof(struct lpfc_mbx_cq_destroy) -
15634 sizeof(struct lpfc_sli4_cfg_mhdr));
15635 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15636 LPFC_MBOX_OPCODE_CQ_DESTROY,
15637 length, LPFC_SLI4_MBX_EMBED);
15638 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
15639 cq->queue_id);
15640 mbox->vport = cq->phba->pport;
15641 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15642 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
15643 /* The IOCTL status is embedded in the mailbox subheader. */
15644 shdr = (union lpfc_sli4_cfg_shdr *)
15645 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
15646 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15647 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15648 if (shdr_status || shdr_add_status || rc) {
15649 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15650 "2506 CQ_DESTROY mailbox failed with "
15651 "status x%x add_status x%x, mbx status x%x\n",
15652 shdr_status, shdr_add_status, rc);
15653 status = -ENXIO;
15655 /* Remove cq from any list */
15656 list_del_init(&cq->list);
15657 mempool_free(mbox, cq->phba->mbox_mem_pool);
15658 return status;
15662 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
15663 * @qm: The queue structure associated with the queue to destroy.
15665 * This function destroys a queue, as detailed in @mq by sending an mailbox
15666 * command, specific to the type of queue, to the HBA.
15668 * The @mq struct is used to get the queue ID of the queue to destroy.
15670 * On success this function will return a zero. If the queue destroy mailbox
15671 * command fails this function will return -ENXIO.
15674 lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
15676 LPFC_MBOXQ_t *mbox;
15677 int rc, length, status = 0;
15678 uint32_t shdr_status, shdr_add_status;
15679 union lpfc_sli4_cfg_shdr *shdr;
15681 /* sanity check on queue memory */
15682 if (!mq)
15683 return -ENODEV;
15684 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
15685 if (!mbox)
15686 return -ENOMEM;
15687 length = (sizeof(struct lpfc_mbx_mq_destroy) -
15688 sizeof(struct lpfc_sli4_cfg_mhdr));
15689 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15690 LPFC_MBOX_OPCODE_MQ_DESTROY,
15691 length, LPFC_SLI4_MBX_EMBED);
15692 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
15693 mq->queue_id);
15694 mbox->vport = mq->phba->pport;
15695 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15696 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
15697 /* The IOCTL status is embedded in the mailbox subheader. */
15698 shdr = (union lpfc_sli4_cfg_shdr *)
15699 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
15700 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15701 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15702 if (shdr_status || shdr_add_status || rc) {
15703 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15704 "2507 MQ_DESTROY mailbox failed with "
15705 "status x%x add_status x%x, mbx status x%x\n",
15706 shdr_status, shdr_add_status, rc);
15707 status = -ENXIO;
15709 /* Remove mq from any list */
15710 list_del_init(&mq->list);
15711 mempool_free(mbox, mq->phba->mbox_mem_pool);
15712 return status;
15716 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
15717 * @wq: The queue structure associated with the queue to destroy.
15719 * This function destroys a queue, as detailed in @wq by sending an mailbox
15720 * command, specific to the type of queue, to the HBA.
15722 * The @wq struct is used to get the queue ID of the queue to destroy.
15724 * On success this function will return a zero. If the queue destroy mailbox
15725 * command fails this function will return -ENXIO.
15728 lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
15730 LPFC_MBOXQ_t *mbox;
15731 int rc, length, status = 0;
15732 uint32_t shdr_status, shdr_add_status;
15733 union lpfc_sli4_cfg_shdr *shdr;
15735 /* sanity check on queue memory */
15736 if (!wq)
15737 return -ENODEV;
15738 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
15739 if (!mbox)
15740 return -ENOMEM;
15741 length = (sizeof(struct lpfc_mbx_wq_destroy) -
15742 sizeof(struct lpfc_sli4_cfg_mhdr));
15743 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15744 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
15745 length, LPFC_SLI4_MBX_EMBED);
15746 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
15747 wq->queue_id);
15748 mbox->vport = wq->phba->pport;
15749 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15750 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
15751 shdr = (union lpfc_sli4_cfg_shdr *)
15752 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
15753 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15754 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15755 if (shdr_status || shdr_add_status || rc) {
15756 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15757 "2508 WQ_DESTROY mailbox failed with "
15758 "status x%x add_status x%x, mbx status x%x\n",
15759 shdr_status, shdr_add_status, rc);
15760 status = -ENXIO;
15762 /* Remove wq from any list */
15763 list_del_init(&wq->list);
15764 kfree(wq->pring);
15765 wq->pring = NULL;
15766 mempool_free(mbox, wq->phba->mbox_mem_pool);
15767 return status;
15771 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
15772 * @rq: The queue structure associated with the queue to destroy.
15774 * This function destroys a queue, as detailed in @rq by sending an mailbox
15775 * command, specific to the type of queue, to the HBA.
15777 * The @rq struct is used to get the queue ID of the queue to destroy.
15779 * On success this function will return a zero. If the queue destroy mailbox
15780 * command fails this function will return -ENXIO.
15783 lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
15784 struct lpfc_queue *drq)
15786 LPFC_MBOXQ_t *mbox;
15787 int rc, length, status = 0;
15788 uint32_t shdr_status, shdr_add_status;
15789 union lpfc_sli4_cfg_shdr *shdr;
15791 /* sanity check on queue memory */
15792 if (!hrq || !drq)
15793 return -ENODEV;
15794 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
15795 if (!mbox)
15796 return -ENOMEM;
15797 length = (sizeof(struct lpfc_mbx_rq_destroy) -
15798 sizeof(struct lpfc_sli4_cfg_mhdr));
15799 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15800 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
15801 length, LPFC_SLI4_MBX_EMBED);
15802 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
15803 hrq->queue_id);
15804 mbox->vport = hrq->phba->pport;
15805 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15806 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
15807 /* The IOCTL status is embedded in the mailbox subheader. */
15808 shdr = (union lpfc_sli4_cfg_shdr *)
15809 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
15810 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15811 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15812 if (shdr_status || shdr_add_status || rc) {
15813 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15814 "2509 RQ_DESTROY mailbox failed with "
15815 "status x%x add_status x%x, mbx status x%x\n",
15816 shdr_status, shdr_add_status, rc);
15817 if (rc != MBX_TIMEOUT)
15818 mempool_free(mbox, hrq->phba->mbox_mem_pool);
15819 return -ENXIO;
15821 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
15822 drq->queue_id);
15823 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
15824 shdr = (union lpfc_sli4_cfg_shdr *)
15825 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
15826 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15827 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15828 if (shdr_status || shdr_add_status || rc) {
15829 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15830 "2510 RQ_DESTROY mailbox failed with "
15831 "status x%x add_status x%x, mbx status x%x\n",
15832 shdr_status, shdr_add_status, rc);
15833 status = -ENXIO;
15835 list_del_init(&hrq->list);
15836 list_del_init(&drq->list);
15837 mempool_free(mbox, hrq->phba->mbox_mem_pool);
15838 return status;
15842 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
15843 * @phba: The virtual port for which this call being executed.
15844 * @pdma_phys_addr0: Physical address of the 1st SGL page.
15845 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
15846 * @xritag: the xritag that ties this io to the SGL pages.
15848 * This routine will post the sgl pages for the IO that has the xritag
15849 * that is in the iocbq structure. The xritag is assigned during iocbq
15850 * creation and persists for as long as the driver is loaded.
15851 * if the caller has fewer than 256 scatter gather segments to map then
15852 * pdma_phys_addr1 should be 0.
15853 * If the caller needs to map more than 256 scatter gather segment then
15854 * pdma_phys_addr1 should be a valid physical address.
15855 * physical address for SGLs must be 64 byte aligned.
15856 * If you are going to map 2 SGL's then the first one must have 256 entries
15857 * the second sgl can have between 1 and 256 entries.
15859 * Return codes:
15860 * 0 - Success
15861 * -ENXIO, -ENOMEM - Failure
15864 lpfc_sli4_post_sgl(struct lpfc_hba *phba,
15865 dma_addr_t pdma_phys_addr0,
15866 dma_addr_t pdma_phys_addr1,
15867 uint16_t xritag)
15869 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
15870 LPFC_MBOXQ_t *mbox;
15871 int rc;
15872 uint32_t shdr_status, shdr_add_status;
15873 uint32_t mbox_tmo;
15874 union lpfc_sli4_cfg_shdr *shdr;
15876 if (xritag == NO_XRI) {
15877 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15878 "0364 Invalid param:\n");
15879 return -EINVAL;
15882 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15883 if (!mbox)
15884 return -ENOMEM;
15886 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15887 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
15888 sizeof(struct lpfc_mbx_post_sgl_pages) -
15889 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
15891 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
15892 &mbox->u.mqe.un.post_sgl_pages;
15893 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
15894 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
15896 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
15897 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
15898 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
15899 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
15901 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
15902 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
15903 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
15904 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
15905 if (!phba->sli4_hba.intr_enable)
15906 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15907 else {
15908 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
15909 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
15911 /* The IOCTL status is embedded in the mailbox subheader. */
15912 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
15913 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15914 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15915 if (rc != MBX_TIMEOUT)
15916 mempool_free(mbox, phba->mbox_mem_pool);
15917 if (shdr_status || shdr_add_status || rc) {
15918 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15919 "2511 POST_SGL mailbox failed with "
15920 "status x%x add_status x%x, mbx status x%x\n",
15921 shdr_status, shdr_add_status, rc);
15923 return 0;
15927 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
15928 * @phba: pointer to lpfc hba data structure.
15930 * This routine is invoked to post rpi header templates to the
15931 * HBA consistent with the SLI-4 interface spec. This routine
15932 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15933 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15935 * Returns
15936 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
15937 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
15939 static uint16_t
15940 lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
15942 unsigned long xri;
15945 * Fetch the next logical xri. Because this index is logical,
15946 * the driver starts at 0 each time.
15948 spin_lock_irq(&phba->hbalock);
15949 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
15950 phba->sli4_hba.max_cfg_param.max_xri, 0);
15951 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
15952 spin_unlock_irq(&phba->hbalock);
15953 return NO_XRI;
15954 } else {
15955 set_bit(xri, phba->sli4_hba.xri_bmask);
15956 phba->sli4_hba.max_cfg_param.xri_used++;
15958 spin_unlock_irq(&phba->hbalock);
15959 return xri;
15963 * lpfc_sli4_free_xri - Release an xri for reuse.
15964 * @phba: pointer to lpfc hba data structure.
15966 * This routine is invoked to release an xri to the pool of
15967 * available rpis maintained by the driver.
15969 static void
15970 __lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
15972 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
15973 phba->sli4_hba.max_cfg_param.xri_used--;
15978 * lpfc_sli4_free_xri - Release an xri for reuse.
15979 * @phba: pointer to lpfc hba data structure.
15981 * This routine is invoked to release an xri to the pool of
15982 * available rpis maintained by the driver.
15984 void
15985 lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
15987 spin_lock_irq(&phba->hbalock);
15988 __lpfc_sli4_free_xri(phba, xri);
15989 spin_unlock_irq(&phba->hbalock);
15993 * lpfc_sli4_next_xritag - Get an xritag for the io
15994 * @phba: Pointer to HBA context object.
15996 * This function gets an xritag for the iocb. If there is no unused xritag
15997 * it will return 0xffff.
15998 * The function returns the allocated xritag if successful, else returns zero.
15999 * Zero is not a valid xritag.
16000 * The caller is not required to hold any lock.
16002 uint16_t
16003 lpfc_sli4_next_xritag(struct lpfc_hba *phba)
16005 uint16_t xri_index;
16007 xri_index = lpfc_sli4_alloc_xri(phba);
16008 if (xri_index == NO_XRI)
16009 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
16010 "2004 Failed to allocate XRI.last XRITAG is %d"
16011 " Max XRI is %d, Used XRI is %d\n",
16012 xri_index,
16013 phba->sli4_hba.max_cfg_param.max_xri,
16014 phba->sli4_hba.max_cfg_param.xri_used);
16015 return xri_index;
16019 * lpfc_sli4_post_sgl_list - post a block of ELS sgls to the port.
16020 * @phba: pointer to lpfc hba data structure.
16021 * @post_sgl_list: pointer to els sgl entry list.
16022 * @count: number of els sgl entries on the list.
16024 * This routine is invoked to post a block of driver's sgl pages to the
16025 * HBA using non-embedded mailbox command. No Lock is held. This routine
16026 * is only called when the driver is loading and after all IO has been
16027 * stopped.
16029 static int
16030 lpfc_sli4_post_sgl_list(struct lpfc_hba *phba,
16031 struct list_head *post_sgl_list,
16032 int post_cnt)
16034 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
16035 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
16036 struct sgl_page_pairs *sgl_pg_pairs;
16037 void *viraddr;
16038 LPFC_MBOXQ_t *mbox;
16039 uint32_t reqlen, alloclen, pg_pairs;
16040 uint32_t mbox_tmo;
16041 uint16_t xritag_start = 0;
16042 int rc = 0;
16043 uint32_t shdr_status, shdr_add_status;
16044 union lpfc_sli4_cfg_shdr *shdr;
16046 reqlen = post_cnt * sizeof(struct sgl_page_pairs) +
16047 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
16048 if (reqlen > SLI4_PAGE_SIZE) {
16049 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16050 "2559 Block sgl registration required DMA "
16051 "size (%d) great than a page\n", reqlen);
16052 return -ENOMEM;
16055 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16056 if (!mbox)
16057 return -ENOMEM;
16059 /* Allocate DMA memory and set up the non-embedded mailbox command */
16060 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16061 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
16062 LPFC_SLI4_MBX_NEMBED);
16064 if (alloclen < reqlen) {
16065 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16066 "0285 Allocated DMA memory size (%d) is "
16067 "less than the requested DMA memory "
16068 "size (%d)\n", alloclen, reqlen);
16069 lpfc_sli4_mbox_cmd_free(phba, mbox);
16070 return -ENOMEM;
16072 /* Set up the SGL pages in the non-embedded DMA pages */
16073 viraddr = mbox->sge_array->addr[0];
16074 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
16075 sgl_pg_pairs = &sgl->sgl_pg_pairs;
16077 pg_pairs = 0;
16078 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
16079 /* Set up the sge entry */
16080 sgl_pg_pairs->sgl_pg0_addr_lo =
16081 cpu_to_le32(putPaddrLow(sglq_entry->phys));
16082 sgl_pg_pairs->sgl_pg0_addr_hi =
16083 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
16084 sgl_pg_pairs->sgl_pg1_addr_lo =
16085 cpu_to_le32(putPaddrLow(0));
16086 sgl_pg_pairs->sgl_pg1_addr_hi =
16087 cpu_to_le32(putPaddrHigh(0));
16089 /* Keep the first xritag on the list */
16090 if (pg_pairs == 0)
16091 xritag_start = sglq_entry->sli4_xritag;
16092 sgl_pg_pairs++;
16093 pg_pairs++;
16096 /* Complete initialization and perform endian conversion. */
16097 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
16098 bf_set(lpfc_post_sgl_pages_xricnt, sgl, post_cnt);
16099 sgl->word0 = cpu_to_le32(sgl->word0);
16101 if (!phba->sli4_hba.intr_enable)
16102 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16103 else {
16104 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16105 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16107 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
16108 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16109 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16110 if (rc != MBX_TIMEOUT)
16111 lpfc_sli4_mbox_cmd_free(phba, mbox);
16112 if (shdr_status || shdr_add_status || rc) {
16113 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16114 "2513 POST_SGL_BLOCK mailbox command failed "
16115 "status x%x add_status x%x mbx status x%x\n",
16116 shdr_status, shdr_add_status, rc);
16117 rc = -ENXIO;
16119 return rc;
16123 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
16124 * @phba: pointer to lpfc hba data structure.
16125 * @sblist: pointer to scsi buffer list.
16126 * @count: number of scsi buffers on the list.
16128 * This routine is invoked to post a block of @count scsi sgl pages from a
16129 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
16130 * No Lock is held.
16134 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba,
16135 struct list_head *sblist,
16136 int count)
16138 struct lpfc_scsi_buf *psb;
16139 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
16140 struct sgl_page_pairs *sgl_pg_pairs;
16141 void *viraddr;
16142 LPFC_MBOXQ_t *mbox;
16143 uint32_t reqlen, alloclen, pg_pairs;
16144 uint32_t mbox_tmo;
16145 uint16_t xritag_start = 0;
16146 int rc = 0;
16147 uint32_t shdr_status, shdr_add_status;
16148 dma_addr_t pdma_phys_bpl1;
16149 union lpfc_sli4_cfg_shdr *shdr;
16151 /* Calculate the requested length of the dma memory */
16152 reqlen = count * sizeof(struct sgl_page_pairs) +
16153 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
16154 if (reqlen > SLI4_PAGE_SIZE) {
16155 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
16156 "0217 Block sgl registration required DMA "
16157 "size (%d) great than a page\n", reqlen);
16158 return -ENOMEM;
16160 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16161 if (!mbox) {
16162 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16163 "0283 Failed to allocate mbox cmd memory\n");
16164 return -ENOMEM;
16167 /* Allocate DMA memory and set up the non-embedded mailbox command */
16168 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16169 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
16170 LPFC_SLI4_MBX_NEMBED);
16172 if (alloclen < reqlen) {
16173 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16174 "2561 Allocated DMA memory size (%d) is "
16175 "less than the requested DMA memory "
16176 "size (%d)\n", alloclen, reqlen);
16177 lpfc_sli4_mbox_cmd_free(phba, mbox);
16178 return -ENOMEM;
16181 /* Get the first SGE entry from the non-embedded DMA memory */
16182 viraddr = mbox->sge_array->addr[0];
16184 /* Set up the SGL pages in the non-embedded DMA pages */
16185 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
16186 sgl_pg_pairs = &sgl->sgl_pg_pairs;
16188 pg_pairs = 0;
16189 list_for_each_entry(psb, sblist, list) {
16190 /* Set up the sge entry */
16191 sgl_pg_pairs->sgl_pg0_addr_lo =
16192 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
16193 sgl_pg_pairs->sgl_pg0_addr_hi =
16194 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
16195 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
16196 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
16197 else
16198 pdma_phys_bpl1 = 0;
16199 sgl_pg_pairs->sgl_pg1_addr_lo =
16200 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
16201 sgl_pg_pairs->sgl_pg1_addr_hi =
16202 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
16203 /* Keep the first xritag on the list */
16204 if (pg_pairs == 0)
16205 xritag_start = psb->cur_iocbq.sli4_xritag;
16206 sgl_pg_pairs++;
16207 pg_pairs++;
16209 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
16210 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
16211 /* Perform endian conversion if necessary */
16212 sgl->word0 = cpu_to_le32(sgl->word0);
16214 if (!phba->sli4_hba.intr_enable)
16215 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16216 else {
16217 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
16218 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16220 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
16221 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16222 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16223 if (rc != MBX_TIMEOUT)
16224 lpfc_sli4_mbox_cmd_free(phba, mbox);
16225 if (shdr_status || shdr_add_status || rc) {
16226 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16227 "2564 POST_SGL_BLOCK mailbox command failed "
16228 "status x%x add_status x%x mbx status x%x\n",
16229 shdr_status, shdr_add_status, rc);
16230 rc = -ENXIO;
16232 return rc;
16236 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
16237 * @phba: pointer to lpfc_hba struct that the frame was received on
16238 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16240 * This function checks the fields in the @fc_hdr to see if the FC frame is a
16241 * valid type of frame that the LPFC driver will handle. This function will
16242 * return a zero if the frame is a valid frame or a non zero value when the
16243 * frame does not pass the check.
16245 static int
16246 lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
16248 /* make rctl_names static to save stack space */
16249 struct fc_vft_header *fc_vft_hdr;
16250 uint32_t *header = (uint32_t *) fc_hdr;
16252 #define FC_RCTL_MDS_DIAGS 0xF4
16254 switch (fc_hdr->fh_r_ctl) {
16255 case FC_RCTL_DD_UNCAT: /* uncategorized information */
16256 case FC_RCTL_DD_SOL_DATA: /* solicited data */
16257 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
16258 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
16259 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
16260 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
16261 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
16262 case FC_RCTL_DD_CMD_STATUS: /* command status */
16263 case FC_RCTL_ELS_REQ: /* extended link services request */
16264 case FC_RCTL_ELS_REP: /* extended link services reply */
16265 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
16266 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
16267 case FC_RCTL_BA_NOP: /* basic link service NOP */
16268 case FC_RCTL_BA_ABTS: /* basic link service abort */
16269 case FC_RCTL_BA_RMC: /* remove connection */
16270 case FC_RCTL_BA_ACC: /* basic accept */
16271 case FC_RCTL_BA_RJT: /* basic reject */
16272 case FC_RCTL_BA_PRMT:
16273 case FC_RCTL_ACK_1: /* acknowledge_1 */
16274 case FC_RCTL_ACK_0: /* acknowledge_0 */
16275 case FC_RCTL_P_RJT: /* port reject */
16276 case FC_RCTL_F_RJT: /* fabric reject */
16277 case FC_RCTL_P_BSY: /* port busy */
16278 case FC_RCTL_F_BSY: /* fabric busy to data frame */
16279 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
16280 case FC_RCTL_LCR: /* link credit reset */
16281 case FC_RCTL_MDS_DIAGS: /* MDS Diagnostics */
16282 case FC_RCTL_END: /* end */
16283 break;
16284 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
16285 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
16286 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
16287 return lpfc_fc_frame_check(phba, fc_hdr);
16288 default:
16289 goto drop;
16292 #define FC_TYPE_VENDOR_UNIQUE 0xFF
16294 switch (fc_hdr->fh_type) {
16295 case FC_TYPE_BLS:
16296 case FC_TYPE_ELS:
16297 case FC_TYPE_FCP:
16298 case FC_TYPE_CT:
16299 case FC_TYPE_NVME:
16300 case FC_TYPE_VENDOR_UNIQUE:
16301 break;
16302 case FC_TYPE_IP:
16303 case FC_TYPE_ILS:
16304 default:
16305 goto drop;
16308 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
16309 "2538 Received frame rctl:x%x, type:x%x, "
16310 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
16311 fc_hdr->fh_r_ctl, fc_hdr->fh_type,
16312 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
16313 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
16314 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
16315 be32_to_cpu(header[6]));
16316 return 0;
16317 drop:
16318 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
16319 "2539 Dropped frame rctl:x%x type:x%x\n",
16320 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
16321 return 1;
16325 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
16326 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16328 * This function processes the FC header to retrieve the VFI from the VF
16329 * header, if one exists. This function will return the VFI if one exists
16330 * or 0 if no VSAN Header exists.
16332 static uint32_t
16333 lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
16335 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
16337 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
16338 return 0;
16339 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
16343 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
16344 * @phba: Pointer to the HBA structure to search for the vport on
16345 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
16346 * @fcfi: The FC Fabric ID that the frame came from
16348 * This function searches the @phba for a vport that matches the content of the
16349 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
16350 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
16351 * returns the matching vport pointer or NULL if unable to match frame to a
16352 * vport.
16354 static struct lpfc_vport *
16355 lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
16356 uint16_t fcfi, uint32_t did)
16358 struct lpfc_vport **vports;
16359 struct lpfc_vport *vport = NULL;
16360 int i;
16362 if (did == Fabric_DID)
16363 return phba->pport;
16364 if ((phba->pport->fc_flag & FC_PT2PT) &&
16365 !(phba->link_state == LPFC_HBA_READY))
16366 return phba->pport;
16368 vports = lpfc_create_vport_work_array(phba);
16369 if (vports != NULL) {
16370 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
16371 if (phba->fcf.fcfi == fcfi &&
16372 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
16373 vports[i]->fc_myDID == did) {
16374 vport = vports[i];
16375 break;
16379 lpfc_destroy_vport_work_array(phba, vports);
16380 return vport;
16384 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
16385 * @vport: The vport to work on.
16387 * This function updates the receive sequence time stamp for this vport. The
16388 * receive sequence time stamp indicates the time that the last frame of the
16389 * the sequence that has been idle for the longest amount of time was received.
16390 * the driver uses this time stamp to indicate if any received sequences have
16391 * timed out.
16393 static void
16394 lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
16396 struct lpfc_dmabuf *h_buf;
16397 struct hbq_dmabuf *dmabuf = NULL;
16399 /* get the oldest sequence on the rcv list */
16400 h_buf = list_get_first(&vport->rcv_buffer_list,
16401 struct lpfc_dmabuf, list);
16402 if (!h_buf)
16403 return;
16404 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16405 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
16409 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
16410 * @vport: The vport that the received sequences were sent to.
16412 * This function cleans up all outstanding received sequences. This is called
16413 * by the driver when a link event or user action invalidates all the received
16414 * sequences.
16416 void
16417 lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
16419 struct lpfc_dmabuf *h_buf, *hnext;
16420 struct lpfc_dmabuf *d_buf, *dnext;
16421 struct hbq_dmabuf *dmabuf = NULL;
16423 /* start with the oldest sequence on the rcv list */
16424 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
16425 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16426 list_del_init(&dmabuf->hbuf.list);
16427 list_for_each_entry_safe(d_buf, dnext,
16428 &dmabuf->dbuf.list, list) {
16429 list_del_init(&d_buf->list);
16430 lpfc_in_buf_free(vport->phba, d_buf);
16432 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
16437 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
16438 * @vport: The vport that the received sequences were sent to.
16440 * This function determines whether any received sequences have timed out by
16441 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
16442 * indicates that there is at least one timed out sequence this routine will
16443 * go through the received sequences one at a time from most inactive to most
16444 * active to determine which ones need to be cleaned up. Once it has determined
16445 * that a sequence needs to be cleaned up it will simply free up the resources
16446 * without sending an abort.
16448 void
16449 lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
16451 struct lpfc_dmabuf *h_buf, *hnext;
16452 struct lpfc_dmabuf *d_buf, *dnext;
16453 struct hbq_dmabuf *dmabuf = NULL;
16454 unsigned long timeout;
16455 int abort_count = 0;
16457 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
16458 vport->rcv_buffer_time_stamp);
16459 if (list_empty(&vport->rcv_buffer_list) ||
16460 time_before(jiffies, timeout))
16461 return;
16462 /* start with the oldest sequence on the rcv list */
16463 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
16464 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16465 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
16466 dmabuf->time_stamp);
16467 if (time_before(jiffies, timeout))
16468 break;
16469 abort_count++;
16470 list_del_init(&dmabuf->hbuf.list);
16471 list_for_each_entry_safe(d_buf, dnext,
16472 &dmabuf->dbuf.list, list) {
16473 list_del_init(&d_buf->list);
16474 lpfc_in_buf_free(vport->phba, d_buf);
16476 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
16478 if (abort_count)
16479 lpfc_update_rcv_time_stamp(vport);
16483 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
16484 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
16486 * This function searches through the existing incomplete sequences that have
16487 * been sent to this @vport. If the frame matches one of the incomplete
16488 * sequences then the dbuf in the @dmabuf is added to the list of frames that
16489 * make up that sequence. If no sequence is found that matches this frame then
16490 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
16491 * This function returns a pointer to the first dmabuf in the sequence list that
16492 * the frame was linked to.
16494 static struct hbq_dmabuf *
16495 lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
16497 struct fc_frame_header *new_hdr;
16498 struct fc_frame_header *temp_hdr;
16499 struct lpfc_dmabuf *d_buf;
16500 struct lpfc_dmabuf *h_buf;
16501 struct hbq_dmabuf *seq_dmabuf = NULL;
16502 struct hbq_dmabuf *temp_dmabuf = NULL;
16503 uint8_t found = 0;
16505 INIT_LIST_HEAD(&dmabuf->dbuf.list);
16506 dmabuf->time_stamp = jiffies;
16507 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
16509 /* Use the hdr_buf to find the sequence that this frame belongs to */
16510 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
16511 temp_hdr = (struct fc_frame_header *)h_buf->virt;
16512 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
16513 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
16514 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
16515 continue;
16516 /* found a pending sequence that matches this frame */
16517 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16518 break;
16520 if (!seq_dmabuf) {
16522 * This indicates first frame received for this sequence.
16523 * Queue the buffer on the vport's rcv_buffer_list.
16525 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
16526 lpfc_update_rcv_time_stamp(vport);
16527 return dmabuf;
16529 temp_hdr = seq_dmabuf->hbuf.virt;
16530 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
16531 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
16532 list_del_init(&seq_dmabuf->hbuf.list);
16533 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
16534 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
16535 lpfc_update_rcv_time_stamp(vport);
16536 return dmabuf;
16538 /* move this sequence to the tail to indicate a young sequence */
16539 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
16540 seq_dmabuf->time_stamp = jiffies;
16541 lpfc_update_rcv_time_stamp(vport);
16542 if (list_empty(&seq_dmabuf->dbuf.list)) {
16543 temp_hdr = dmabuf->hbuf.virt;
16544 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
16545 return seq_dmabuf;
16547 /* find the correct place in the sequence to insert this frame */
16548 d_buf = list_entry(seq_dmabuf->dbuf.list.prev, typeof(*d_buf), list);
16549 while (!found) {
16550 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
16551 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
16553 * If the frame's sequence count is greater than the frame on
16554 * the list then insert the frame right after this frame
16556 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
16557 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
16558 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
16559 found = 1;
16560 break;
16563 if (&d_buf->list == &seq_dmabuf->dbuf.list)
16564 break;
16565 d_buf = list_entry(d_buf->list.prev, typeof(*d_buf), list);
16568 if (found)
16569 return seq_dmabuf;
16570 return NULL;
16574 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
16575 * @vport: pointer to a vitural port
16576 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16578 * This function tries to abort from the partially assembed sequence, described
16579 * by the information from basic abbort @dmabuf. It checks to see whether such
16580 * partially assembled sequence held by the driver. If so, it shall free up all
16581 * the frames from the partially assembled sequence.
16583 * Return
16584 * true -- if there is matching partially assembled sequence present and all
16585 * the frames freed with the sequence;
16586 * false -- if there is no matching partially assembled sequence present so
16587 * nothing got aborted in the lower layer driver
16589 static bool
16590 lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
16591 struct hbq_dmabuf *dmabuf)
16593 struct fc_frame_header *new_hdr;
16594 struct fc_frame_header *temp_hdr;
16595 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
16596 struct hbq_dmabuf *seq_dmabuf = NULL;
16598 /* Use the hdr_buf to find the sequence that matches this frame */
16599 INIT_LIST_HEAD(&dmabuf->dbuf.list);
16600 INIT_LIST_HEAD(&dmabuf->hbuf.list);
16601 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
16602 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
16603 temp_hdr = (struct fc_frame_header *)h_buf->virt;
16604 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
16605 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
16606 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
16607 continue;
16608 /* found a pending sequence that matches this frame */
16609 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
16610 break;
16613 /* Free up all the frames from the partially assembled sequence */
16614 if (seq_dmabuf) {
16615 list_for_each_entry_safe(d_buf, n_buf,
16616 &seq_dmabuf->dbuf.list, list) {
16617 list_del_init(&d_buf->list);
16618 lpfc_in_buf_free(vport->phba, d_buf);
16620 return true;
16622 return false;
16626 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
16627 * @vport: pointer to a vitural port
16628 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16630 * This function tries to abort from the assembed sequence from upper level
16631 * protocol, described by the information from basic abbort @dmabuf. It
16632 * checks to see whether such pending context exists at upper level protocol.
16633 * If so, it shall clean up the pending context.
16635 * Return
16636 * true -- if there is matching pending context of the sequence cleaned
16637 * at ulp;
16638 * false -- if there is no matching pending context of the sequence present
16639 * at ulp.
16641 static bool
16642 lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
16644 struct lpfc_hba *phba = vport->phba;
16645 int handled;
16647 /* Accepting abort at ulp with SLI4 only */
16648 if (phba->sli_rev < LPFC_SLI_REV4)
16649 return false;
16651 /* Register all caring upper level protocols to attend abort */
16652 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
16653 if (handled)
16654 return true;
16656 return false;
16660 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
16661 * @phba: Pointer to HBA context object.
16662 * @cmd_iocbq: pointer to the command iocbq structure.
16663 * @rsp_iocbq: pointer to the response iocbq structure.
16665 * This function handles the sequence abort response iocb command complete
16666 * event. It properly releases the memory allocated to the sequence abort
16667 * accept iocb.
16669 static void
16670 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
16671 struct lpfc_iocbq *cmd_iocbq,
16672 struct lpfc_iocbq *rsp_iocbq)
16674 struct lpfc_nodelist *ndlp;
16676 if (cmd_iocbq) {
16677 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
16678 lpfc_nlp_put(ndlp);
16679 lpfc_nlp_not_used(ndlp);
16680 lpfc_sli_release_iocbq(phba, cmd_iocbq);
16683 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
16684 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
16685 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16686 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
16687 rsp_iocbq->iocb.ulpStatus,
16688 rsp_iocbq->iocb.un.ulpWord[4]);
16692 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
16693 * @phba: Pointer to HBA context object.
16694 * @xri: xri id in transaction.
16696 * This function validates the xri maps to the known range of XRIs allocated an
16697 * used by the driver.
16699 uint16_t
16700 lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
16701 uint16_t xri)
16703 uint16_t i;
16705 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
16706 if (xri == phba->sli4_hba.xri_ids[i])
16707 return i;
16709 return NO_XRI;
16713 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
16714 * @phba: Pointer to HBA context object.
16715 * @fc_hdr: pointer to a FC frame header.
16717 * This function sends a basic response to a previous unsol sequence abort
16718 * event after aborting the sequence handling.
16720 void
16721 lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
16722 struct fc_frame_header *fc_hdr, bool aborted)
16724 struct lpfc_hba *phba = vport->phba;
16725 struct lpfc_iocbq *ctiocb = NULL;
16726 struct lpfc_nodelist *ndlp;
16727 uint16_t oxid, rxid, xri, lxri;
16728 uint32_t sid, fctl;
16729 IOCB_t *icmd;
16730 int rc;
16732 if (!lpfc_is_link_up(phba))
16733 return;
16735 sid = sli4_sid_from_fc_hdr(fc_hdr);
16736 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
16737 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
16739 ndlp = lpfc_findnode_did(vport, sid);
16740 if (!ndlp) {
16741 ndlp = lpfc_nlp_init(vport, sid);
16742 if (!ndlp) {
16743 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
16744 "1268 Failed to allocate ndlp for "
16745 "oxid:x%x SID:x%x\n", oxid, sid);
16746 return;
16748 /* Put ndlp onto pport node list */
16749 lpfc_enqueue_node(vport, ndlp);
16750 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
16751 /* re-setup ndlp without removing from node list */
16752 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
16753 if (!ndlp) {
16754 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
16755 "3275 Failed to active ndlp found "
16756 "for oxid:x%x SID:x%x\n", oxid, sid);
16757 return;
16761 /* Allocate buffer for rsp iocb */
16762 ctiocb = lpfc_sli_get_iocbq(phba);
16763 if (!ctiocb)
16764 return;
16766 /* Extract the F_CTL field from FC_HDR */
16767 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
16769 icmd = &ctiocb->iocb;
16770 icmd->un.xseq64.bdl.bdeSize = 0;
16771 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
16772 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
16773 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
16774 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
16776 /* Fill in the rest of iocb fields */
16777 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
16778 icmd->ulpBdeCount = 0;
16779 icmd->ulpLe = 1;
16780 icmd->ulpClass = CLASS3;
16781 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
16782 ctiocb->context1 = lpfc_nlp_get(ndlp);
16784 ctiocb->iocb_cmpl = NULL;
16785 ctiocb->vport = phba->pport;
16786 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
16787 ctiocb->sli4_lxritag = NO_XRI;
16788 ctiocb->sli4_xritag = NO_XRI;
16790 if (fctl & FC_FC_EX_CTX)
16791 /* Exchange responder sent the abort so we
16792 * own the oxid.
16794 xri = oxid;
16795 else
16796 xri = rxid;
16797 lxri = lpfc_sli4_xri_inrange(phba, xri);
16798 if (lxri != NO_XRI)
16799 lpfc_set_rrq_active(phba, ndlp, lxri,
16800 (xri == oxid) ? rxid : oxid, 0);
16801 /* For BA_ABTS from exchange responder, if the logical xri with
16802 * the oxid maps to the FCP XRI range, the port no longer has
16803 * that exchange context, send a BLS_RJT. Override the IOCB for
16804 * a BA_RJT.
16806 if ((fctl & FC_FC_EX_CTX) &&
16807 (lxri > lpfc_sli4_get_iocb_cnt(phba))) {
16808 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
16809 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
16810 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
16811 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
16814 /* If BA_ABTS failed to abort a partially assembled receive sequence,
16815 * the driver no longer has that exchange, send a BLS_RJT. Override
16816 * the IOCB for a BA_RJT.
16818 if (aborted == false) {
16819 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
16820 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
16821 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
16822 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
16825 if (fctl & FC_FC_EX_CTX) {
16826 /* ABTS sent by responder to CT exchange, construction
16827 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
16828 * field and RX_ID from ABTS for RX_ID field.
16830 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
16831 } else {
16832 /* ABTS sent by initiator to CT exchange, construction
16833 * of BA_ACC will need to allocate a new XRI as for the
16834 * XRI_TAG field.
16836 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
16838 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
16839 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
16841 /* Xmit CT abts response on exchange <xid> */
16842 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
16843 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
16844 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
16846 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
16847 if (rc == IOCB_ERROR) {
16848 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
16849 "2925 Failed to issue CT ABTS RSP x%x on "
16850 "xri x%x, Data x%x\n",
16851 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
16852 phba->link_state);
16853 lpfc_nlp_put(ndlp);
16854 ctiocb->context1 = NULL;
16855 lpfc_sli_release_iocbq(phba, ctiocb);
16860 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
16861 * @vport: Pointer to the vport on which this sequence was received
16862 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16864 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
16865 * receive sequence is only partially assembed by the driver, it shall abort
16866 * the partially assembled frames for the sequence. Otherwise, if the
16867 * unsolicited receive sequence has been completely assembled and passed to
16868 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
16869 * unsolicited sequence has been aborted. After that, it will issue a basic
16870 * accept to accept the abort.
16872 static void
16873 lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
16874 struct hbq_dmabuf *dmabuf)
16876 struct lpfc_hba *phba = vport->phba;
16877 struct fc_frame_header fc_hdr;
16878 uint32_t fctl;
16879 bool aborted;
16881 /* Make a copy of fc_hdr before the dmabuf being released */
16882 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
16883 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
16885 if (fctl & FC_FC_EX_CTX) {
16886 /* ABTS by responder to exchange, no cleanup needed */
16887 aborted = true;
16888 } else {
16889 /* ABTS by initiator to exchange, need to do cleanup */
16890 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
16891 if (aborted == false)
16892 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
16894 lpfc_in_buf_free(phba, &dmabuf->dbuf);
16896 if (phba->nvmet_support) {
16897 lpfc_nvmet_rcv_unsol_abort(vport, &fc_hdr);
16898 return;
16901 /* Respond with BA_ACC or BA_RJT accordingly */
16902 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
16906 * lpfc_seq_complete - Indicates if a sequence is complete
16907 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16909 * This function checks the sequence, starting with the frame described by
16910 * @dmabuf, to see if all the frames associated with this sequence are present.
16911 * the frames associated with this sequence are linked to the @dmabuf using the
16912 * dbuf list. This function looks for two major things. 1) That the first frame
16913 * has a sequence count of zero. 2) There is a frame with last frame of sequence
16914 * set. 3) That there are no holes in the sequence count. The function will
16915 * return 1 when the sequence is complete, otherwise it will return 0.
16917 static int
16918 lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
16920 struct fc_frame_header *hdr;
16921 struct lpfc_dmabuf *d_buf;
16922 struct hbq_dmabuf *seq_dmabuf;
16923 uint32_t fctl;
16924 int seq_count = 0;
16926 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
16927 /* make sure first fame of sequence has a sequence count of zero */
16928 if (hdr->fh_seq_cnt != seq_count)
16929 return 0;
16930 fctl = (hdr->fh_f_ctl[0] << 16 |
16931 hdr->fh_f_ctl[1] << 8 |
16932 hdr->fh_f_ctl[2]);
16933 /* If last frame of sequence we can return success. */
16934 if (fctl & FC_FC_END_SEQ)
16935 return 1;
16936 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
16937 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
16938 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
16939 /* If there is a hole in the sequence count then fail. */
16940 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
16941 return 0;
16942 fctl = (hdr->fh_f_ctl[0] << 16 |
16943 hdr->fh_f_ctl[1] << 8 |
16944 hdr->fh_f_ctl[2]);
16945 /* If last frame of sequence we can return success. */
16946 if (fctl & FC_FC_END_SEQ)
16947 return 1;
16949 return 0;
16953 * lpfc_prep_seq - Prep sequence for ULP processing
16954 * @vport: Pointer to the vport on which this sequence was received
16955 * @dmabuf: pointer to a dmabuf that describes the FC sequence
16957 * This function takes a sequence, described by a list of frames, and creates
16958 * a list of iocbq structures to describe the sequence. This iocbq list will be
16959 * used to issue to the generic unsolicited sequence handler. This routine
16960 * returns a pointer to the first iocbq in the list. If the function is unable
16961 * to allocate an iocbq then it throw out the received frames that were not
16962 * able to be described and return a pointer to the first iocbq. If unable to
16963 * allocate any iocbqs (including the first) this function will return NULL.
16965 static struct lpfc_iocbq *
16966 lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
16968 struct hbq_dmabuf *hbq_buf;
16969 struct lpfc_dmabuf *d_buf, *n_buf;
16970 struct lpfc_iocbq *first_iocbq, *iocbq;
16971 struct fc_frame_header *fc_hdr;
16972 uint32_t sid;
16973 uint32_t len, tot_len;
16974 struct ulp_bde64 *pbde;
16976 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
16977 /* remove from receive buffer list */
16978 list_del_init(&seq_dmabuf->hbuf.list);
16979 lpfc_update_rcv_time_stamp(vport);
16980 /* get the Remote Port's SID */
16981 sid = sli4_sid_from_fc_hdr(fc_hdr);
16982 tot_len = 0;
16983 /* Get an iocbq struct to fill in. */
16984 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
16985 if (first_iocbq) {
16986 /* Initialize the first IOCB. */
16987 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
16988 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
16989 first_iocbq->vport = vport;
16991 /* Check FC Header to see what TYPE of frame we are rcv'ing */
16992 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
16993 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
16994 first_iocbq->iocb.un.rcvels.parmRo =
16995 sli4_did_from_fc_hdr(fc_hdr);
16996 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
16997 } else
16998 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
16999 first_iocbq->iocb.ulpContext = NO_XRI;
17000 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
17001 be16_to_cpu(fc_hdr->fh_ox_id);
17002 /* iocbq is prepped for internal consumption. Physical vpi. */
17003 first_iocbq->iocb.unsli3.rcvsli3.vpi =
17004 vport->phba->vpi_ids[vport->vpi];
17005 /* put the first buffer into the first IOCBq */
17006 tot_len = bf_get(lpfc_rcqe_length,
17007 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
17009 first_iocbq->context2 = &seq_dmabuf->dbuf;
17010 first_iocbq->context3 = NULL;
17011 first_iocbq->iocb.ulpBdeCount = 1;
17012 if (tot_len > LPFC_DATA_BUF_SIZE)
17013 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
17014 LPFC_DATA_BUF_SIZE;
17015 else
17016 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
17018 first_iocbq->iocb.un.rcvels.remoteID = sid;
17020 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
17022 iocbq = first_iocbq;
17024 * Each IOCBq can have two Buffers assigned, so go through the list
17025 * of buffers for this sequence and save two buffers in each IOCBq
17027 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
17028 if (!iocbq) {
17029 lpfc_in_buf_free(vport->phba, d_buf);
17030 continue;
17032 if (!iocbq->context3) {
17033 iocbq->context3 = d_buf;
17034 iocbq->iocb.ulpBdeCount++;
17035 /* We need to get the size out of the right CQE */
17036 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17037 len = bf_get(lpfc_rcqe_length,
17038 &hbq_buf->cq_event.cqe.rcqe_cmpl);
17039 pbde = (struct ulp_bde64 *)
17040 &iocbq->iocb.unsli3.sli3Words[4];
17041 if (len > LPFC_DATA_BUF_SIZE)
17042 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
17043 else
17044 pbde->tus.f.bdeSize = len;
17046 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
17047 tot_len += len;
17048 } else {
17049 iocbq = lpfc_sli_get_iocbq(vport->phba);
17050 if (!iocbq) {
17051 if (first_iocbq) {
17052 first_iocbq->iocb.ulpStatus =
17053 IOSTAT_FCP_RSP_ERROR;
17054 first_iocbq->iocb.un.ulpWord[4] =
17055 IOERR_NO_RESOURCES;
17057 lpfc_in_buf_free(vport->phba, d_buf);
17058 continue;
17060 /* We need to get the size out of the right CQE */
17061 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
17062 len = bf_get(lpfc_rcqe_length,
17063 &hbq_buf->cq_event.cqe.rcqe_cmpl);
17064 iocbq->context2 = d_buf;
17065 iocbq->context3 = NULL;
17066 iocbq->iocb.ulpBdeCount = 1;
17067 if (len > LPFC_DATA_BUF_SIZE)
17068 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
17069 LPFC_DATA_BUF_SIZE;
17070 else
17071 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
17073 tot_len += len;
17074 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
17076 iocbq->iocb.un.rcvels.remoteID = sid;
17077 list_add_tail(&iocbq->list, &first_iocbq->list);
17080 return first_iocbq;
17083 static void
17084 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
17085 struct hbq_dmabuf *seq_dmabuf)
17087 struct fc_frame_header *fc_hdr;
17088 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
17089 struct lpfc_hba *phba = vport->phba;
17091 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
17092 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
17093 if (!iocbq) {
17094 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17095 "2707 Ring %d handler: Failed to allocate "
17096 "iocb Rctl x%x Type x%x received\n",
17097 LPFC_ELS_RING,
17098 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17099 return;
17101 if (!lpfc_complete_unsol_iocb(phba,
17102 phba->sli4_hba.els_wq->pring,
17103 iocbq, fc_hdr->fh_r_ctl,
17104 fc_hdr->fh_type))
17105 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17106 "2540 Ring %d handler: unexpected Rctl "
17107 "x%x Type x%x received\n",
17108 LPFC_ELS_RING,
17109 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
17111 /* Free iocb created in lpfc_prep_seq */
17112 list_for_each_entry_safe(curr_iocb, next_iocb,
17113 &iocbq->list, list) {
17114 list_del_init(&curr_iocb->list);
17115 lpfc_sli_release_iocbq(phba, curr_iocb);
17117 lpfc_sli_release_iocbq(phba, iocbq);
17120 static void
17121 lpfc_sli4_mds_loopback_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
17122 struct lpfc_iocbq *rspiocb)
17124 struct lpfc_dmabuf *pcmd = cmdiocb->context2;
17126 if (pcmd && pcmd->virt)
17127 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
17128 kfree(pcmd);
17129 lpfc_sli_release_iocbq(phba, cmdiocb);
17132 static void
17133 lpfc_sli4_handle_mds_loopback(struct lpfc_vport *vport,
17134 struct hbq_dmabuf *dmabuf)
17136 struct fc_frame_header *fc_hdr;
17137 struct lpfc_hba *phba = vport->phba;
17138 struct lpfc_iocbq *iocbq = NULL;
17139 union lpfc_wqe *wqe;
17140 struct lpfc_dmabuf *pcmd = NULL;
17141 uint32_t frame_len;
17142 int rc;
17144 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17145 frame_len = bf_get(lpfc_rcqe_length, &dmabuf->cq_event.cqe.rcqe_cmpl);
17147 /* Send the received frame back */
17148 iocbq = lpfc_sli_get_iocbq(phba);
17149 if (!iocbq)
17150 goto exit;
17152 /* Allocate buffer for command payload */
17153 pcmd = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
17154 if (pcmd)
17155 pcmd->virt = dma_pool_alloc(phba->lpfc_drb_pool, GFP_KERNEL,
17156 &pcmd->phys);
17157 if (!pcmd || !pcmd->virt)
17158 goto exit;
17160 INIT_LIST_HEAD(&pcmd->list);
17162 /* copyin the payload */
17163 memcpy(pcmd->virt, dmabuf->dbuf.virt, frame_len);
17165 /* fill in BDE's for command */
17166 iocbq->iocb.un.xseq64.bdl.addrHigh = putPaddrHigh(pcmd->phys);
17167 iocbq->iocb.un.xseq64.bdl.addrLow = putPaddrLow(pcmd->phys);
17168 iocbq->iocb.un.xseq64.bdl.bdeFlags = BUFF_TYPE_BDE_64;
17169 iocbq->iocb.un.xseq64.bdl.bdeSize = frame_len;
17171 iocbq->context2 = pcmd;
17172 iocbq->vport = vport;
17173 iocbq->iocb_flag &= ~LPFC_FIP_ELS_ID_MASK;
17174 iocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
17177 * Setup rest of the iocb as though it were a WQE
17178 * Build the SEND_FRAME WQE
17180 wqe = (union lpfc_wqe *)&iocbq->iocb;
17182 wqe->send_frame.frame_len = frame_len;
17183 wqe->send_frame.fc_hdr_wd0 = be32_to_cpu(*((uint32_t *)fc_hdr));
17184 wqe->send_frame.fc_hdr_wd1 = be32_to_cpu(*((uint32_t *)fc_hdr + 1));
17185 wqe->send_frame.fc_hdr_wd2 = be32_to_cpu(*((uint32_t *)fc_hdr + 2));
17186 wqe->send_frame.fc_hdr_wd3 = be32_to_cpu(*((uint32_t *)fc_hdr + 3));
17187 wqe->send_frame.fc_hdr_wd4 = be32_to_cpu(*((uint32_t *)fc_hdr + 4));
17188 wqe->send_frame.fc_hdr_wd5 = be32_to_cpu(*((uint32_t *)fc_hdr + 5));
17190 iocbq->iocb.ulpCommand = CMD_SEND_FRAME;
17191 iocbq->iocb.ulpLe = 1;
17192 iocbq->iocb_cmpl = lpfc_sli4_mds_loopback_cmpl;
17193 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, iocbq, 0);
17194 if (rc == IOCB_ERROR)
17195 goto exit;
17197 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17198 return;
17200 exit:
17201 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
17202 "2023 Unable to process MDS loopback frame\n");
17203 if (pcmd && pcmd->virt)
17204 dma_pool_free(phba->lpfc_drb_pool, pcmd->virt, pcmd->phys);
17205 kfree(pcmd);
17206 if (iocbq)
17207 lpfc_sli_release_iocbq(phba, iocbq);
17208 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17212 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
17213 * @phba: Pointer to HBA context object.
17215 * This function is called with no lock held. This function processes all
17216 * the received buffers and gives it to upper layers when a received buffer
17217 * indicates that it is the final frame in the sequence. The interrupt
17218 * service routine processes received buffers at interrupt contexts.
17219 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
17220 * appropriate receive function when the final frame in a sequence is received.
17222 void
17223 lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
17224 struct hbq_dmabuf *dmabuf)
17226 struct hbq_dmabuf *seq_dmabuf;
17227 struct fc_frame_header *fc_hdr;
17228 struct lpfc_vport *vport;
17229 uint32_t fcfi;
17230 uint32_t did;
17232 /* Process each received buffer */
17233 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
17235 /* check to see if this a valid type of frame */
17236 if (lpfc_fc_frame_check(phba, fc_hdr)) {
17237 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17238 return;
17241 if ((bf_get(lpfc_cqe_code,
17242 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
17243 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
17244 &dmabuf->cq_event.cqe.rcqe_cmpl);
17245 else
17246 fcfi = bf_get(lpfc_rcqe_fcf_id,
17247 &dmabuf->cq_event.cqe.rcqe_cmpl);
17249 if (fc_hdr->fh_r_ctl == 0xF4 && fc_hdr->fh_type == 0xFF) {
17250 vport = phba->pport;
17251 /* Handle MDS Loopback frames */
17252 lpfc_sli4_handle_mds_loopback(vport, dmabuf);
17253 return;
17256 /* d_id this frame is directed to */
17257 did = sli4_did_from_fc_hdr(fc_hdr);
17259 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi, did);
17260 if (!vport) {
17261 /* throw out the frame */
17262 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17263 return;
17266 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
17267 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
17268 (did != Fabric_DID)) {
17270 * Throw out the frame if we are not pt2pt.
17271 * The pt2pt protocol allows for discovery frames
17272 * to be received without a registered VPI.
17274 if (!(vport->fc_flag & FC_PT2PT) ||
17275 (phba->link_state == LPFC_HBA_READY)) {
17276 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17277 return;
17281 /* Handle the basic abort sequence (BA_ABTS) event */
17282 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
17283 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
17284 return;
17287 /* Link this frame */
17288 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
17289 if (!seq_dmabuf) {
17290 /* unable to add frame to vport - throw it out */
17291 lpfc_in_buf_free(phba, &dmabuf->dbuf);
17292 return;
17294 /* If not last frame in sequence continue processing frames. */
17295 if (!lpfc_seq_complete(seq_dmabuf))
17296 return;
17298 /* Send the complete sequence to the upper layer protocol */
17299 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
17303 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
17304 * @phba: pointer to lpfc hba data structure.
17306 * This routine is invoked to post rpi header templates to the
17307 * HBA consistent with the SLI-4 interface spec. This routine
17308 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
17309 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
17311 * This routine does not require any locks. It's usage is expected
17312 * to be driver load or reset recovery when the driver is
17313 * sequential.
17315 * Return codes
17316 * 0 - successful
17317 * -EIO - The mailbox failed to complete successfully.
17318 * When this error occurs, the driver is not guaranteed
17319 * to have any rpi regions posted to the device and
17320 * must either attempt to repost the regions or take a
17321 * fatal error.
17324 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
17326 struct lpfc_rpi_hdr *rpi_page;
17327 uint32_t rc = 0;
17328 uint16_t lrpi = 0;
17330 /* SLI4 ports that support extents do not require RPI headers. */
17331 if (!phba->sli4_hba.rpi_hdrs_in_use)
17332 goto exit;
17333 if (phba->sli4_hba.extents_in_use)
17334 return -EIO;
17336 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
17338 * Assign the rpi headers a physical rpi only if the driver
17339 * has not initialized those resources. A port reset only
17340 * needs the headers posted.
17342 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
17343 LPFC_RPI_RSRC_RDY)
17344 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
17346 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
17347 if (rc != MBX_SUCCESS) {
17348 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17349 "2008 Error %d posting all rpi "
17350 "headers\n", rc);
17351 rc = -EIO;
17352 break;
17356 exit:
17357 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
17358 LPFC_RPI_RSRC_RDY);
17359 return rc;
17363 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
17364 * @phba: pointer to lpfc hba data structure.
17365 * @rpi_page: pointer to the rpi memory region.
17367 * This routine is invoked to post a single rpi header to the
17368 * HBA consistent with the SLI-4 interface spec. This memory region
17369 * maps up to 64 rpi context regions.
17371 * Return codes
17372 * 0 - successful
17373 * -ENOMEM - No available memory
17374 * -EIO - The mailbox failed to complete successfully.
17377 lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
17379 LPFC_MBOXQ_t *mboxq;
17380 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
17381 uint32_t rc = 0;
17382 uint32_t shdr_status, shdr_add_status;
17383 union lpfc_sli4_cfg_shdr *shdr;
17385 /* SLI4 ports that support extents do not require RPI headers. */
17386 if (!phba->sli4_hba.rpi_hdrs_in_use)
17387 return rc;
17388 if (phba->sli4_hba.extents_in_use)
17389 return -EIO;
17391 /* The port is notified of the header region via a mailbox command. */
17392 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17393 if (!mboxq) {
17394 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17395 "2001 Unable to allocate memory for issuing "
17396 "SLI_CONFIG_SPECIAL mailbox command\n");
17397 return -ENOMEM;
17400 /* Post all rpi memory regions to the port. */
17401 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
17402 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
17403 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
17404 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
17405 sizeof(struct lpfc_sli4_cfg_mhdr),
17406 LPFC_SLI4_MBX_EMBED);
17409 /* Post the physical rpi to the port for this rpi header. */
17410 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
17411 rpi_page->start_rpi);
17412 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
17413 hdr_tmpl, rpi_page->page_count);
17415 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
17416 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
17417 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
17418 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
17419 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17420 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17421 if (rc != MBX_TIMEOUT)
17422 mempool_free(mboxq, phba->mbox_mem_pool);
17423 if (shdr_status || shdr_add_status || rc) {
17424 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17425 "2514 POST_RPI_HDR mailbox failed with "
17426 "status x%x add_status x%x, mbx status x%x\n",
17427 shdr_status, shdr_add_status, rc);
17428 rc = -ENXIO;
17429 } else {
17431 * The next_rpi stores the next logical module-64 rpi value used
17432 * to post physical rpis in subsequent rpi postings.
17434 spin_lock_irq(&phba->hbalock);
17435 phba->sli4_hba.next_rpi = rpi_page->next_rpi;
17436 spin_unlock_irq(&phba->hbalock);
17438 return rc;
17442 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
17443 * @phba: pointer to lpfc hba data structure.
17445 * This routine is invoked to post rpi header templates to the
17446 * HBA consistent with the SLI-4 interface spec. This routine
17447 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
17448 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
17450 * Returns
17451 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
17452 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
17455 lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
17457 unsigned long rpi;
17458 uint16_t max_rpi, rpi_limit;
17459 uint16_t rpi_remaining, lrpi = 0;
17460 struct lpfc_rpi_hdr *rpi_hdr;
17461 unsigned long iflag;
17464 * Fetch the next logical rpi. Because this index is logical,
17465 * the driver starts at 0 each time.
17467 spin_lock_irqsave(&phba->hbalock, iflag);
17468 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
17469 rpi_limit = phba->sli4_hba.next_rpi;
17471 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
17472 if (rpi >= rpi_limit)
17473 rpi = LPFC_RPI_ALLOC_ERROR;
17474 else {
17475 set_bit(rpi, phba->sli4_hba.rpi_bmask);
17476 phba->sli4_hba.max_cfg_param.rpi_used++;
17477 phba->sli4_hba.rpi_count++;
17479 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
17480 "0001 rpi:%x max:%x lim:%x\n",
17481 (int) rpi, max_rpi, rpi_limit);
17484 * Don't try to allocate more rpi header regions if the device limit
17485 * has been exhausted.
17487 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
17488 (phba->sli4_hba.rpi_count >= max_rpi)) {
17489 spin_unlock_irqrestore(&phba->hbalock, iflag);
17490 return rpi;
17494 * RPI header postings are not required for SLI4 ports capable of
17495 * extents.
17497 if (!phba->sli4_hba.rpi_hdrs_in_use) {
17498 spin_unlock_irqrestore(&phba->hbalock, iflag);
17499 return rpi;
17503 * If the driver is running low on rpi resources, allocate another
17504 * page now. Note that the next_rpi value is used because
17505 * it represents how many are actually in use whereas max_rpi notes
17506 * how many are supported max by the device.
17508 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
17509 spin_unlock_irqrestore(&phba->hbalock, iflag);
17510 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
17511 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
17512 if (!rpi_hdr) {
17513 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17514 "2002 Error Could not grow rpi "
17515 "count\n");
17516 } else {
17517 lrpi = rpi_hdr->start_rpi;
17518 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
17519 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
17523 return rpi;
17527 * lpfc_sli4_free_rpi - Release an rpi for reuse.
17528 * @phba: pointer to lpfc hba data structure.
17530 * This routine is invoked to release an rpi to the pool of
17531 * available rpis maintained by the driver.
17533 static void
17534 __lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
17536 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
17537 phba->sli4_hba.rpi_count--;
17538 phba->sli4_hba.max_cfg_param.rpi_used--;
17543 * lpfc_sli4_free_rpi - Release an rpi for reuse.
17544 * @phba: pointer to lpfc hba data structure.
17546 * This routine is invoked to release an rpi to the pool of
17547 * available rpis maintained by the driver.
17549 void
17550 lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
17552 spin_lock_irq(&phba->hbalock);
17553 __lpfc_sli4_free_rpi(phba, rpi);
17554 spin_unlock_irq(&phba->hbalock);
17558 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
17559 * @phba: pointer to lpfc hba data structure.
17561 * This routine is invoked to remove the memory region that
17562 * provided rpi via a bitmask.
17564 void
17565 lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
17567 kfree(phba->sli4_hba.rpi_bmask);
17568 kfree(phba->sli4_hba.rpi_ids);
17569 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
17573 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
17574 * @phba: pointer to lpfc hba data structure.
17576 * This routine is invoked to remove the memory region that
17577 * provided rpi via a bitmask.
17580 lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
17581 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
17583 LPFC_MBOXQ_t *mboxq;
17584 struct lpfc_hba *phba = ndlp->phba;
17585 int rc;
17587 /* The port is notified of the header region via a mailbox command. */
17588 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17589 if (!mboxq)
17590 return -ENOMEM;
17592 /* Post all rpi memory regions to the port. */
17593 lpfc_resume_rpi(mboxq, ndlp);
17594 if (cmpl) {
17595 mboxq->mbox_cmpl = cmpl;
17596 mboxq->context1 = arg;
17597 mboxq->context2 = ndlp;
17598 } else
17599 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
17600 mboxq->vport = ndlp->vport;
17601 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
17602 if (rc == MBX_NOT_FINISHED) {
17603 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17604 "2010 Resume RPI Mailbox failed "
17605 "status %d, mbxStatus x%x\n", rc,
17606 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
17607 mempool_free(mboxq, phba->mbox_mem_pool);
17608 return -EIO;
17610 return 0;
17614 * lpfc_sli4_init_vpi - Initialize a vpi with the port
17615 * @vport: Pointer to the vport for which the vpi is being initialized
17617 * This routine is invoked to activate a vpi with the port.
17619 * Returns:
17620 * 0 success
17621 * -Evalue otherwise
17624 lpfc_sli4_init_vpi(struct lpfc_vport *vport)
17626 LPFC_MBOXQ_t *mboxq;
17627 int rc = 0;
17628 int retval = MBX_SUCCESS;
17629 uint32_t mbox_tmo;
17630 struct lpfc_hba *phba = vport->phba;
17631 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17632 if (!mboxq)
17633 return -ENOMEM;
17634 lpfc_init_vpi(phba, mboxq, vport->vpi);
17635 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
17636 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
17637 if (rc != MBX_SUCCESS) {
17638 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
17639 "2022 INIT VPI Mailbox failed "
17640 "status %d, mbxStatus x%x\n", rc,
17641 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
17642 retval = -EIO;
17644 if (rc != MBX_TIMEOUT)
17645 mempool_free(mboxq, vport->phba->mbox_mem_pool);
17647 return retval;
17651 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
17652 * @phba: pointer to lpfc hba data structure.
17653 * @mboxq: Pointer to mailbox object.
17655 * This routine is invoked to manually add a single FCF record. The caller
17656 * must pass a completely initialized FCF_Record. This routine takes
17657 * care of the nonembedded mailbox operations.
17659 static void
17660 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
17662 void *virt_addr;
17663 union lpfc_sli4_cfg_shdr *shdr;
17664 uint32_t shdr_status, shdr_add_status;
17666 virt_addr = mboxq->sge_array->addr[0];
17667 /* The IOCTL status is embedded in the mailbox subheader. */
17668 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
17669 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
17670 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
17672 if ((shdr_status || shdr_add_status) &&
17673 (shdr_status != STATUS_FCF_IN_USE))
17674 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17675 "2558 ADD_FCF_RECORD mailbox failed with "
17676 "status x%x add_status x%x\n",
17677 shdr_status, shdr_add_status);
17679 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17683 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
17684 * @phba: pointer to lpfc hba data structure.
17685 * @fcf_record: pointer to the initialized fcf record to add.
17687 * This routine is invoked to manually add a single FCF record. The caller
17688 * must pass a completely initialized FCF_Record. This routine takes
17689 * care of the nonembedded mailbox operations.
17692 lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
17694 int rc = 0;
17695 LPFC_MBOXQ_t *mboxq;
17696 uint8_t *bytep;
17697 void *virt_addr;
17698 struct lpfc_mbx_sge sge;
17699 uint32_t alloc_len, req_len;
17700 uint32_t fcfindex;
17702 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17703 if (!mboxq) {
17704 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17705 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
17706 return -ENOMEM;
17709 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
17710 sizeof(uint32_t);
17712 /* Allocate DMA memory and set up the non-embedded mailbox command */
17713 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
17714 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
17715 req_len, LPFC_SLI4_MBX_NEMBED);
17716 if (alloc_len < req_len) {
17717 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17718 "2523 Allocated DMA memory size (x%x) is "
17719 "less than the requested DMA memory "
17720 "size (x%x)\n", alloc_len, req_len);
17721 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17722 return -ENOMEM;
17726 * Get the first SGE entry from the non-embedded DMA memory. This
17727 * routine only uses a single SGE.
17729 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
17730 virt_addr = mboxq->sge_array->addr[0];
17732 * Configure the FCF record for FCFI 0. This is the driver's
17733 * hardcoded default and gets used in nonFIP mode.
17735 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
17736 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
17737 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
17740 * Copy the fcf_index and the FCF Record Data. The data starts after
17741 * the FCoE header plus word10. The data copy needs to be endian
17742 * correct.
17744 bytep += sizeof(uint32_t);
17745 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
17746 mboxq->vport = phba->pport;
17747 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
17748 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
17749 if (rc == MBX_NOT_FINISHED) {
17750 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17751 "2515 ADD_FCF_RECORD mailbox failed with "
17752 "status 0x%x\n", rc);
17753 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17754 rc = -EIO;
17755 } else
17756 rc = 0;
17758 return rc;
17762 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
17763 * @phba: pointer to lpfc hba data structure.
17764 * @fcf_record: pointer to the fcf record to write the default data.
17765 * @fcf_index: FCF table entry index.
17767 * This routine is invoked to build the driver's default FCF record. The
17768 * values used are hardcoded. This routine handles memory initialization.
17771 void
17772 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
17773 struct fcf_record *fcf_record,
17774 uint16_t fcf_index)
17776 memset(fcf_record, 0, sizeof(struct fcf_record));
17777 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
17778 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
17779 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
17780 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
17781 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
17782 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
17783 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
17784 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
17785 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
17786 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
17787 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
17788 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
17789 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
17790 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
17791 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
17792 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
17793 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
17794 /* Set the VLAN bit map */
17795 if (phba->valid_vlan) {
17796 fcf_record->vlan_bitmap[phba->vlan_id / 8]
17797 = 1 << (phba->vlan_id % 8);
17802 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
17803 * @phba: pointer to lpfc hba data structure.
17804 * @fcf_index: FCF table entry offset.
17806 * This routine is invoked to scan the entire FCF table by reading FCF
17807 * record and processing it one at a time starting from the @fcf_index
17808 * for initial FCF discovery or fast FCF failover rediscovery.
17810 * Return 0 if the mailbox command is submitted successfully, none 0
17811 * otherwise.
17814 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
17816 int rc = 0, error;
17817 LPFC_MBOXQ_t *mboxq;
17819 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
17820 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
17821 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17822 if (!mboxq) {
17823 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
17824 "2000 Failed to allocate mbox for "
17825 "READ_FCF cmd\n");
17826 error = -ENOMEM;
17827 goto fail_fcf_scan;
17829 /* Construct the read FCF record mailbox command */
17830 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
17831 if (rc) {
17832 error = -EINVAL;
17833 goto fail_fcf_scan;
17835 /* Issue the mailbox command asynchronously */
17836 mboxq->vport = phba->pport;
17837 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
17839 spin_lock_irq(&phba->hbalock);
17840 phba->hba_flag |= FCF_TS_INPROG;
17841 spin_unlock_irq(&phba->hbalock);
17843 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
17844 if (rc == MBX_NOT_FINISHED)
17845 error = -EIO;
17846 else {
17847 /* Reset eligible FCF count for new scan */
17848 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
17849 phba->fcf.eligible_fcf_cnt = 0;
17850 error = 0;
17852 fail_fcf_scan:
17853 if (error) {
17854 if (mboxq)
17855 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17856 /* FCF scan failed, clear FCF_TS_INPROG flag */
17857 spin_lock_irq(&phba->hbalock);
17858 phba->hba_flag &= ~FCF_TS_INPROG;
17859 spin_unlock_irq(&phba->hbalock);
17861 return error;
17865 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
17866 * @phba: pointer to lpfc hba data structure.
17867 * @fcf_index: FCF table entry offset.
17869 * This routine is invoked to read an FCF record indicated by @fcf_index
17870 * and to use it for FLOGI roundrobin FCF failover.
17872 * Return 0 if the mailbox command is submitted successfully, none 0
17873 * otherwise.
17876 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
17878 int rc = 0, error;
17879 LPFC_MBOXQ_t *mboxq;
17881 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17882 if (!mboxq) {
17883 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
17884 "2763 Failed to allocate mbox for "
17885 "READ_FCF cmd\n");
17886 error = -ENOMEM;
17887 goto fail_fcf_read;
17889 /* Construct the read FCF record mailbox command */
17890 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
17891 if (rc) {
17892 error = -EINVAL;
17893 goto fail_fcf_read;
17895 /* Issue the mailbox command asynchronously */
17896 mboxq->vport = phba->pport;
17897 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
17898 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
17899 if (rc == MBX_NOT_FINISHED)
17900 error = -EIO;
17901 else
17902 error = 0;
17904 fail_fcf_read:
17905 if (error && mboxq)
17906 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17907 return error;
17911 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
17912 * @phba: pointer to lpfc hba data structure.
17913 * @fcf_index: FCF table entry offset.
17915 * This routine is invoked to read an FCF record indicated by @fcf_index to
17916 * determine whether it's eligible for FLOGI roundrobin failover list.
17918 * Return 0 if the mailbox command is submitted successfully, none 0
17919 * otherwise.
17922 lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
17924 int rc = 0, error;
17925 LPFC_MBOXQ_t *mboxq;
17927 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
17928 if (!mboxq) {
17929 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
17930 "2758 Failed to allocate mbox for "
17931 "READ_FCF cmd\n");
17932 error = -ENOMEM;
17933 goto fail_fcf_read;
17935 /* Construct the read FCF record mailbox command */
17936 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
17937 if (rc) {
17938 error = -EINVAL;
17939 goto fail_fcf_read;
17941 /* Issue the mailbox command asynchronously */
17942 mboxq->vport = phba->pport;
17943 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
17944 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
17945 if (rc == MBX_NOT_FINISHED)
17946 error = -EIO;
17947 else
17948 error = 0;
17950 fail_fcf_read:
17951 if (error && mboxq)
17952 lpfc_sli4_mbox_cmd_free(phba, mboxq);
17953 return error;
17957 * lpfc_check_next_fcf_pri_level
17958 * phba pointer to the lpfc_hba struct for this port.
17959 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
17960 * routine when the rr_bmask is empty. The FCF indecies are put into the
17961 * rr_bmask based on their priority level. Starting from the highest priority
17962 * to the lowest. The most likely FCF candidate will be in the highest
17963 * priority group. When this routine is called it searches the fcf_pri list for
17964 * next lowest priority group and repopulates the rr_bmask with only those
17965 * fcf_indexes.
17966 * returns:
17967 * 1=success 0=failure
17969 static int
17970 lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
17972 uint16_t next_fcf_pri;
17973 uint16_t last_index;
17974 struct lpfc_fcf_pri *fcf_pri;
17975 int rc;
17976 int ret = 0;
17978 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
17979 LPFC_SLI4_FCF_TBL_INDX_MAX);
17980 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
17981 "3060 Last IDX %d\n", last_index);
17983 /* Verify the priority list has 2 or more entries */
17984 spin_lock_irq(&phba->hbalock);
17985 if (list_empty(&phba->fcf.fcf_pri_list) ||
17986 list_is_singular(&phba->fcf.fcf_pri_list)) {
17987 spin_unlock_irq(&phba->hbalock);
17988 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
17989 "3061 Last IDX %d\n", last_index);
17990 return 0; /* Empty rr list */
17992 spin_unlock_irq(&phba->hbalock);
17994 next_fcf_pri = 0;
17996 * Clear the rr_bmask and set all of the bits that are at this
17997 * priority.
17999 memset(phba->fcf.fcf_rr_bmask, 0,
18000 sizeof(*phba->fcf.fcf_rr_bmask));
18001 spin_lock_irq(&phba->hbalock);
18002 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
18003 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
18004 continue;
18006 * the 1st priority that has not FLOGI failed
18007 * will be the highest.
18009 if (!next_fcf_pri)
18010 next_fcf_pri = fcf_pri->fcf_rec.priority;
18011 spin_unlock_irq(&phba->hbalock);
18012 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
18013 rc = lpfc_sli4_fcf_rr_index_set(phba,
18014 fcf_pri->fcf_rec.fcf_index);
18015 if (rc)
18016 return 0;
18018 spin_lock_irq(&phba->hbalock);
18021 * if next_fcf_pri was not set above and the list is not empty then
18022 * we have failed flogis on all of them. So reset flogi failed
18023 * and start at the beginning.
18025 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
18026 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
18027 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
18029 * the 1st priority that has not FLOGI failed
18030 * will be the highest.
18032 if (!next_fcf_pri)
18033 next_fcf_pri = fcf_pri->fcf_rec.priority;
18034 spin_unlock_irq(&phba->hbalock);
18035 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
18036 rc = lpfc_sli4_fcf_rr_index_set(phba,
18037 fcf_pri->fcf_rec.fcf_index);
18038 if (rc)
18039 return 0;
18041 spin_lock_irq(&phba->hbalock);
18043 } else
18044 ret = 1;
18045 spin_unlock_irq(&phba->hbalock);
18047 return ret;
18050 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
18051 * @phba: pointer to lpfc hba data structure.
18053 * This routine is to get the next eligible FCF record index in a round
18054 * robin fashion. If the next eligible FCF record index equals to the
18055 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
18056 * shall be returned, otherwise, the next eligible FCF record's index
18057 * shall be returned.
18059 uint16_t
18060 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
18062 uint16_t next_fcf_index;
18064 initial_priority:
18065 /* Search start from next bit of currently registered FCF index */
18066 next_fcf_index = phba->fcf.current_rec.fcf_indx;
18068 next_priority:
18069 /* Determine the next fcf index to check */
18070 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
18071 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
18072 LPFC_SLI4_FCF_TBL_INDX_MAX,
18073 next_fcf_index);
18075 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
18076 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18078 * If we have wrapped then we need to clear the bits that
18079 * have been tested so that we can detect when we should
18080 * change the priority level.
18082 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
18083 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
18087 /* Check roundrobin failover list empty condition */
18088 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
18089 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
18091 * If next fcf index is not found check if there are lower
18092 * Priority level fcf's in the fcf_priority list.
18093 * Set up the rr_bmask with all of the avaiable fcf bits
18094 * at that level and continue the selection process.
18096 if (lpfc_check_next_fcf_pri_level(phba))
18097 goto initial_priority;
18098 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
18099 "2844 No roundrobin failover FCF available\n");
18100 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
18101 return LPFC_FCOE_FCF_NEXT_NONE;
18102 else {
18103 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
18104 "3063 Only FCF available idx %d, flag %x\n",
18105 next_fcf_index,
18106 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
18107 return next_fcf_index;
18111 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
18112 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
18113 LPFC_FCF_FLOGI_FAILED) {
18114 if (list_is_singular(&phba->fcf.fcf_pri_list))
18115 return LPFC_FCOE_FCF_NEXT_NONE;
18117 goto next_priority;
18120 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18121 "2845 Get next roundrobin failover FCF (x%x)\n",
18122 next_fcf_index);
18124 return next_fcf_index;
18128 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
18129 * @phba: pointer to lpfc hba data structure.
18131 * This routine sets the FCF record index in to the eligible bmask for
18132 * roundrobin failover search. It checks to make sure that the index
18133 * does not go beyond the range of the driver allocated bmask dimension
18134 * before setting the bit.
18136 * Returns 0 if the index bit successfully set, otherwise, it returns
18137 * -EINVAL.
18140 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
18142 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18143 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18144 "2610 FCF (x%x) reached driver's book "
18145 "keeping dimension:x%x\n",
18146 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
18147 return -EINVAL;
18149 /* Set the eligible FCF record index bmask */
18150 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
18152 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18153 "2790 Set FCF (x%x) to roundrobin FCF failover "
18154 "bmask\n", fcf_index);
18156 return 0;
18160 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
18161 * @phba: pointer to lpfc hba data structure.
18163 * This routine clears the FCF record index from the eligible bmask for
18164 * roundrobin failover search. It checks to make sure that the index
18165 * does not go beyond the range of the driver allocated bmask dimension
18166 * before clearing the bit.
18168 void
18169 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
18171 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
18172 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
18173 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18174 "2762 FCF (x%x) reached driver's book "
18175 "keeping dimension:x%x\n",
18176 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
18177 return;
18179 /* Clear the eligible FCF record index bmask */
18180 spin_lock_irq(&phba->hbalock);
18181 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
18182 list) {
18183 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
18184 list_del_init(&fcf_pri->list);
18185 break;
18188 spin_unlock_irq(&phba->hbalock);
18189 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
18191 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18192 "2791 Clear FCF (x%x) from roundrobin failover "
18193 "bmask\n", fcf_index);
18197 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
18198 * @phba: pointer to lpfc hba data structure.
18200 * This routine is the completion routine for the rediscover FCF table mailbox
18201 * command. If the mailbox command returned failure, it will try to stop the
18202 * FCF rediscover wait timer.
18204 static void
18205 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
18207 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
18208 uint32_t shdr_status, shdr_add_status;
18210 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
18212 shdr_status = bf_get(lpfc_mbox_hdr_status,
18213 &redisc_fcf->header.cfg_shdr.response);
18214 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
18215 &redisc_fcf->header.cfg_shdr.response);
18216 if (shdr_status || shdr_add_status) {
18217 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
18218 "2746 Requesting for FCF rediscovery failed "
18219 "status x%x add_status x%x\n",
18220 shdr_status, shdr_add_status);
18221 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
18222 spin_lock_irq(&phba->hbalock);
18223 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
18224 spin_unlock_irq(&phba->hbalock);
18226 * CVL event triggered FCF rediscover request failed,
18227 * last resort to re-try current registered FCF entry.
18229 lpfc_retry_pport_discovery(phba);
18230 } else {
18231 spin_lock_irq(&phba->hbalock);
18232 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
18233 spin_unlock_irq(&phba->hbalock);
18235 * DEAD FCF event triggered FCF rediscover request
18236 * failed, last resort to fail over as a link down
18237 * to FCF registration.
18239 lpfc_sli4_fcf_dead_failthrough(phba);
18241 } else {
18242 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
18243 "2775 Start FCF rediscover quiescent timer\n");
18245 * Start FCF rediscovery wait timer for pending FCF
18246 * before rescan FCF record table.
18248 lpfc_fcf_redisc_wait_start_timer(phba);
18251 mempool_free(mbox, phba->mbox_mem_pool);
18255 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
18256 * @phba: pointer to lpfc hba data structure.
18258 * This routine is invoked to request for rediscovery of the entire FCF table
18259 * by the port.
18262 lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
18264 LPFC_MBOXQ_t *mbox;
18265 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
18266 int rc, length;
18268 /* Cancel retry delay timers to all vports before FCF rediscover */
18269 lpfc_cancel_all_vport_retry_delay_timer(phba);
18271 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18272 if (!mbox) {
18273 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18274 "2745 Failed to allocate mbox for "
18275 "requesting FCF rediscover.\n");
18276 return -ENOMEM;
18279 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
18280 sizeof(struct lpfc_sli4_cfg_mhdr));
18281 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
18282 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
18283 length, LPFC_SLI4_MBX_EMBED);
18285 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
18286 /* Set count to 0 for invalidating the entire FCF database */
18287 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
18289 /* Issue the mailbox command asynchronously */
18290 mbox->vport = phba->pport;
18291 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
18292 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
18294 if (rc == MBX_NOT_FINISHED) {
18295 mempool_free(mbox, phba->mbox_mem_pool);
18296 return -EIO;
18298 return 0;
18302 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
18303 * @phba: pointer to lpfc hba data structure.
18305 * This function is the failover routine as a last resort to the FCF DEAD
18306 * event when driver failed to perform fast FCF failover.
18308 void
18309 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
18311 uint32_t link_state;
18314 * Last resort as FCF DEAD event failover will treat this as
18315 * a link down, but save the link state because we don't want
18316 * it to be changed to Link Down unless it is already down.
18318 link_state = phba->link_state;
18319 lpfc_linkdown(phba);
18320 phba->link_state = link_state;
18322 /* Unregister FCF if no devices connected to it */
18323 lpfc_unregister_unused_fcf(phba);
18327 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
18328 * @phba: pointer to lpfc hba data structure.
18329 * @rgn23_data: pointer to configure region 23 data.
18331 * This function gets SLI3 port configure region 23 data through memory dump
18332 * mailbox command. When it successfully retrieves data, the size of the data
18333 * will be returned, otherwise, 0 will be returned.
18335 static uint32_t
18336 lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
18338 LPFC_MBOXQ_t *pmb = NULL;
18339 MAILBOX_t *mb;
18340 uint32_t offset = 0;
18341 int rc;
18343 if (!rgn23_data)
18344 return 0;
18346 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18347 if (!pmb) {
18348 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18349 "2600 failed to allocate mailbox memory\n");
18350 return 0;
18352 mb = &pmb->u.mb;
18354 do {
18355 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
18356 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
18358 if (rc != MBX_SUCCESS) {
18359 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
18360 "2601 failed to read config "
18361 "region 23, rc 0x%x Status 0x%x\n",
18362 rc, mb->mbxStatus);
18363 mb->un.varDmp.word_cnt = 0;
18366 * dump mem may return a zero when finished or we got a
18367 * mailbox error, either way we are done.
18369 if (mb->un.varDmp.word_cnt == 0)
18370 break;
18371 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
18372 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
18374 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
18375 rgn23_data + offset,
18376 mb->un.varDmp.word_cnt);
18377 offset += mb->un.varDmp.word_cnt;
18378 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
18380 mempool_free(pmb, phba->mbox_mem_pool);
18381 return offset;
18385 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
18386 * @phba: pointer to lpfc hba data structure.
18387 * @rgn23_data: pointer to configure region 23 data.
18389 * This function gets SLI4 port configure region 23 data through memory dump
18390 * mailbox command. When it successfully retrieves data, the size of the data
18391 * will be returned, otherwise, 0 will be returned.
18393 static uint32_t
18394 lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
18396 LPFC_MBOXQ_t *mboxq = NULL;
18397 struct lpfc_dmabuf *mp = NULL;
18398 struct lpfc_mqe *mqe;
18399 uint32_t data_length = 0;
18400 int rc;
18402 if (!rgn23_data)
18403 return 0;
18405 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18406 if (!mboxq) {
18407 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18408 "3105 failed to allocate mailbox memory\n");
18409 return 0;
18412 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
18413 goto out;
18414 mqe = &mboxq->u.mqe;
18415 mp = (struct lpfc_dmabuf *) mboxq->context1;
18416 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
18417 if (rc)
18418 goto out;
18419 data_length = mqe->un.mb_words[5];
18420 if (data_length == 0)
18421 goto out;
18422 if (data_length > DMP_RGN23_SIZE) {
18423 data_length = 0;
18424 goto out;
18426 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
18427 out:
18428 mempool_free(mboxq, phba->mbox_mem_pool);
18429 if (mp) {
18430 lpfc_mbuf_free(phba, mp->virt, mp->phys);
18431 kfree(mp);
18433 return data_length;
18437 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
18438 * @phba: pointer to lpfc hba data structure.
18440 * This function read region 23 and parse TLV for port status to
18441 * decide if the user disaled the port. If the TLV indicates the
18442 * port is disabled, the hba_flag is set accordingly.
18444 void
18445 lpfc_sli_read_link_ste(struct lpfc_hba *phba)
18447 uint8_t *rgn23_data = NULL;
18448 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
18449 uint32_t offset = 0;
18451 /* Get adapter Region 23 data */
18452 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
18453 if (!rgn23_data)
18454 goto out;
18456 if (phba->sli_rev < LPFC_SLI_REV4)
18457 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
18458 else {
18459 if_type = bf_get(lpfc_sli_intf_if_type,
18460 &phba->sli4_hba.sli_intf);
18461 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
18462 goto out;
18463 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
18466 if (!data_size)
18467 goto out;
18469 /* Check the region signature first */
18470 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
18471 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18472 "2619 Config region 23 has bad signature\n");
18473 goto out;
18475 offset += 4;
18477 /* Check the data structure version */
18478 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
18479 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18480 "2620 Config region 23 has bad version\n");
18481 goto out;
18483 offset += 4;
18485 /* Parse TLV entries in the region */
18486 while (offset < data_size) {
18487 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
18488 break;
18490 * If the TLV is not driver specific TLV or driver id is
18491 * not linux driver id, skip the record.
18493 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
18494 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
18495 (rgn23_data[offset + 3] != 0)) {
18496 offset += rgn23_data[offset + 1] * 4 + 4;
18497 continue;
18500 /* Driver found a driver specific TLV in the config region */
18501 sub_tlv_len = rgn23_data[offset + 1] * 4;
18502 offset += 4;
18503 tlv_offset = 0;
18506 * Search for configured port state sub-TLV.
18508 while ((offset < data_size) &&
18509 (tlv_offset < sub_tlv_len)) {
18510 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
18511 offset += 4;
18512 tlv_offset += 4;
18513 break;
18515 if (rgn23_data[offset] != PORT_STE_TYPE) {
18516 offset += rgn23_data[offset + 1] * 4 + 4;
18517 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
18518 continue;
18521 /* This HBA contains PORT_STE configured */
18522 if (!rgn23_data[offset + 2])
18523 phba->hba_flag |= LINK_DISABLED;
18525 goto out;
18529 out:
18530 kfree(rgn23_data);
18531 return;
18535 * lpfc_wr_object - write an object to the firmware
18536 * @phba: HBA structure that indicates port to create a queue on.
18537 * @dmabuf_list: list of dmabufs to write to the port.
18538 * @size: the total byte value of the objects to write to the port.
18539 * @offset: the current offset to be used to start the transfer.
18541 * This routine will create a wr_object mailbox command to send to the port.
18542 * the mailbox command will be constructed using the dma buffers described in
18543 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
18544 * BDEs that the imbedded mailbox can support. The @offset variable will be
18545 * used to indicate the starting offset of the transfer and will also return
18546 * the offset after the write object mailbox has completed. @size is used to
18547 * determine the end of the object and whether the eof bit should be set.
18549 * Return 0 is successful and offset will contain the the new offset to use
18550 * for the next write.
18551 * Return negative value for error cases.
18554 lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
18555 uint32_t size, uint32_t *offset)
18557 struct lpfc_mbx_wr_object *wr_object;
18558 LPFC_MBOXQ_t *mbox;
18559 int rc = 0, i = 0;
18560 uint32_t shdr_status, shdr_add_status;
18561 uint32_t mbox_tmo;
18562 union lpfc_sli4_cfg_shdr *shdr;
18563 struct lpfc_dmabuf *dmabuf;
18564 uint32_t written = 0;
18566 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
18567 if (!mbox)
18568 return -ENOMEM;
18570 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
18571 LPFC_MBOX_OPCODE_WRITE_OBJECT,
18572 sizeof(struct lpfc_mbx_wr_object) -
18573 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
18575 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
18576 wr_object->u.request.write_offset = *offset;
18577 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
18578 wr_object->u.request.object_name[0] =
18579 cpu_to_le32(wr_object->u.request.object_name[0]);
18580 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
18581 list_for_each_entry(dmabuf, dmabuf_list, list) {
18582 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
18583 break;
18584 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
18585 wr_object->u.request.bde[i].addrHigh =
18586 putPaddrHigh(dmabuf->phys);
18587 if (written + SLI4_PAGE_SIZE >= size) {
18588 wr_object->u.request.bde[i].tus.f.bdeSize =
18589 (size - written);
18590 written += (size - written);
18591 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
18592 } else {
18593 wr_object->u.request.bde[i].tus.f.bdeSize =
18594 SLI4_PAGE_SIZE;
18595 written += SLI4_PAGE_SIZE;
18597 i++;
18599 wr_object->u.request.bde_count = i;
18600 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
18601 if (!phba->sli4_hba.intr_enable)
18602 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
18603 else {
18604 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
18605 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
18607 /* The IOCTL status is embedded in the mailbox subheader. */
18608 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
18609 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
18610 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
18611 if (rc != MBX_TIMEOUT)
18612 mempool_free(mbox, phba->mbox_mem_pool);
18613 if (shdr_status || shdr_add_status || rc) {
18614 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
18615 "3025 Write Object mailbox failed with "
18616 "status x%x add_status x%x, mbx status x%x\n",
18617 shdr_status, shdr_add_status, rc);
18618 rc = -ENXIO;
18619 } else
18620 *offset += wr_object->u.response.actual_write_length;
18621 return rc;
18625 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
18626 * @vport: pointer to vport data structure.
18628 * This function iterate through the mailboxq and clean up all REG_LOGIN
18629 * and REG_VPI mailbox commands associated with the vport. This function
18630 * is called when driver want to restart discovery of the vport due to
18631 * a Clear Virtual Link event.
18633 void
18634 lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
18636 struct lpfc_hba *phba = vport->phba;
18637 LPFC_MBOXQ_t *mb, *nextmb;
18638 struct lpfc_dmabuf *mp;
18639 struct lpfc_nodelist *ndlp;
18640 struct lpfc_nodelist *act_mbx_ndlp = NULL;
18641 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
18642 LIST_HEAD(mbox_cmd_list);
18643 uint8_t restart_loop;
18645 /* Clean up internally queued mailbox commands with the vport */
18646 spin_lock_irq(&phba->hbalock);
18647 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
18648 if (mb->vport != vport)
18649 continue;
18651 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
18652 (mb->u.mb.mbxCommand != MBX_REG_VPI))
18653 continue;
18655 list_del(&mb->list);
18656 list_add_tail(&mb->list, &mbox_cmd_list);
18658 /* Clean up active mailbox command with the vport */
18659 mb = phba->sli.mbox_active;
18660 if (mb && (mb->vport == vport)) {
18661 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
18662 (mb->u.mb.mbxCommand == MBX_REG_VPI))
18663 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
18664 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
18665 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
18666 /* Put reference count for delayed processing */
18667 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
18668 /* Unregister the RPI when mailbox complete */
18669 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
18672 /* Cleanup any mailbox completions which are not yet processed */
18673 do {
18674 restart_loop = 0;
18675 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
18677 * If this mailox is already processed or it is
18678 * for another vport ignore it.
18680 if ((mb->vport != vport) ||
18681 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
18682 continue;
18684 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
18685 (mb->u.mb.mbxCommand != MBX_REG_VPI))
18686 continue;
18688 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
18689 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
18690 ndlp = (struct lpfc_nodelist *)mb->context2;
18691 /* Unregister the RPI when mailbox complete */
18692 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
18693 restart_loop = 1;
18694 spin_unlock_irq(&phba->hbalock);
18695 spin_lock(shost->host_lock);
18696 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
18697 spin_unlock(shost->host_lock);
18698 spin_lock_irq(&phba->hbalock);
18699 break;
18702 } while (restart_loop);
18704 spin_unlock_irq(&phba->hbalock);
18706 /* Release the cleaned-up mailbox commands */
18707 while (!list_empty(&mbox_cmd_list)) {
18708 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
18709 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
18710 mp = (struct lpfc_dmabuf *) (mb->context1);
18711 if (mp) {
18712 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
18713 kfree(mp);
18715 ndlp = (struct lpfc_nodelist *) mb->context2;
18716 mb->context2 = NULL;
18717 if (ndlp) {
18718 spin_lock(shost->host_lock);
18719 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
18720 spin_unlock(shost->host_lock);
18721 lpfc_nlp_put(ndlp);
18724 mempool_free(mb, phba->mbox_mem_pool);
18727 /* Release the ndlp with the cleaned-up active mailbox command */
18728 if (act_mbx_ndlp) {
18729 spin_lock(shost->host_lock);
18730 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
18731 spin_unlock(shost->host_lock);
18732 lpfc_nlp_put(act_mbx_ndlp);
18737 * lpfc_drain_txq - Drain the txq
18738 * @phba: Pointer to HBA context object.
18740 * This function attempt to submit IOCBs on the txq
18741 * to the adapter. For SLI4 adapters, the txq contains
18742 * ELS IOCBs that have been deferred because the there
18743 * are no SGLs. This congestion can occur with large
18744 * vport counts during node discovery.
18747 uint32_t
18748 lpfc_drain_txq(struct lpfc_hba *phba)
18750 LIST_HEAD(completions);
18751 struct lpfc_sli_ring *pring;
18752 struct lpfc_iocbq *piocbq = NULL;
18753 unsigned long iflags = 0;
18754 char *fail_msg = NULL;
18755 struct lpfc_sglq *sglq;
18756 union lpfc_wqe128 wqe128;
18757 union lpfc_wqe *wqe = (union lpfc_wqe *) &wqe128;
18758 uint32_t txq_cnt = 0;
18760 pring = lpfc_phba_elsring(phba);
18761 if (unlikely(!pring))
18762 return 0;
18764 spin_lock_irqsave(&pring->ring_lock, iflags);
18765 list_for_each_entry(piocbq, &pring->txq, list) {
18766 txq_cnt++;
18769 if (txq_cnt > pring->txq_max)
18770 pring->txq_max = txq_cnt;
18772 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18774 while (!list_empty(&pring->txq)) {
18775 spin_lock_irqsave(&pring->ring_lock, iflags);
18777 piocbq = lpfc_sli_ringtx_get(phba, pring);
18778 if (!piocbq) {
18779 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18780 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18781 "2823 txq empty and txq_cnt is %d\n ",
18782 txq_cnt);
18783 break;
18785 sglq = __lpfc_sli_get_els_sglq(phba, piocbq);
18786 if (!sglq) {
18787 __lpfc_sli_ringtx_put(phba, pring, piocbq);
18788 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18789 break;
18791 txq_cnt--;
18793 /* The xri and iocb resources secured,
18794 * attempt to issue request
18796 piocbq->sli4_lxritag = sglq->sli4_lxritag;
18797 piocbq->sli4_xritag = sglq->sli4_xritag;
18798 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
18799 fail_msg = "to convert bpl to sgl";
18800 else if (lpfc_sli4_iocb2wqe(phba, piocbq, wqe))
18801 fail_msg = "to convert iocb to wqe";
18802 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, wqe))
18803 fail_msg = " - Wq is full";
18804 else
18805 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
18807 if (fail_msg) {
18808 /* Failed means we can't issue and need to cancel */
18809 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
18810 "2822 IOCB failed %s iotag 0x%x "
18811 "xri 0x%x\n",
18812 fail_msg,
18813 piocbq->iotag, piocbq->sli4_xritag);
18814 list_add_tail(&piocbq->list, &completions);
18816 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18819 /* Cancel all the IOCBs that cannot be issued */
18820 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
18821 IOERR_SLI_ABORTED);
18823 return txq_cnt;
18827 * lpfc_wqe_bpl2sgl - Convert the bpl/bde to a sgl.
18828 * @phba: Pointer to HBA context object.
18829 * @pwqe: Pointer to command WQE.
18830 * @sglq: Pointer to the scatter gather queue object.
18832 * This routine converts the bpl or bde that is in the WQE
18833 * to a sgl list for the sli4 hardware. The physical address
18834 * of the bpl/bde is converted back to a virtual address.
18835 * If the WQE contains a BPL then the list of BDE's is
18836 * converted to sli4_sge's. If the WQE contains a single
18837 * BDE then it is converted to a single sli_sge.
18838 * The WQE is still in cpu endianness so the contents of
18839 * the bpl can be used without byte swapping.
18841 * Returns valid XRI = Success, NO_XRI = Failure.
18843 static uint16_t
18844 lpfc_wqe_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeq,
18845 struct lpfc_sglq *sglq)
18847 uint16_t xritag = NO_XRI;
18848 struct ulp_bde64 *bpl = NULL;
18849 struct ulp_bde64 bde;
18850 struct sli4_sge *sgl = NULL;
18851 struct lpfc_dmabuf *dmabuf;
18852 union lpfc_wqe *wqe;
18853 int numBdes = 0;
18854 int i = 0;
18855 uint32_t offset = 0; /* accumulated offset in the sg request list */
18856 int inbound = 0; /* number of sg reply entries inbound from firmware */
18857 uint32_t cmd;
18859 if (!pwqeq || !sglq)
18860 return xritag;
18862 sgl = (struct sli4_sge *)sglq->sgl;
18863 wqe = &pwqeq->wqe;
18864 pwqeq->iocb.ulpIoTag = pwqeq->iotag;
18866 cmd = bf_get(wqe_cmnd, &wqe->generic.wqe_com);
18867 if (cmd == CMD_XMIT_BLS_RSP64_WQE)
18868 return sglq->sli4_xritag;
18869 numBdes = pwqeq->rsvd2;
18870 if (numBdes) {
18871 /* The addrHigh and addrLow fields within the WQE
18872 * have not been byteswapped yet so there is no
18873 * need to swap them back.
18875 if (pwqeq->context3)
18876 dmabuf = (struct lpfc_dmabuf *)pwqeq->context3;
18877 else
18878 return xritag;
18880 bpl = (struct ulp_bde64 *)dmabuf->virt;
18881 if (!bpl)
18882 return xritag;
18884 for (i = 0; i < numBdes; i++) {
18885 /* Should already be byte swapped. */
18886 sgl->addr_hi = bpl->addrHigh;
18887 sgl->addr_lo = bpl->addrLow;
18889 sgl->word2 = le32_to_cpu(sgl->word2);
18890 if ((i+1) == numBdes)
18891 bf_set(lpfc_sli4_sge_last, sgl, 1);
18892 else
18893 bf_set(lpfc_sli4_sge_last, sgl, 0);
18894 /* swap the size field back to the cpu so we
18895 * can assign it to the sgl.
18897 bde.tus.w = le32_to_cpu(bpl->tus.w);
18898 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
18899 /* The offsets in the sgl need to be accumulated
18900 * separately for the request and reply lists.
18901 * The request is always first, the reply follows.
18903 switch (cmd) {
18904 case CMD_GEN_REQUEST64_WQE:
18905 /* add up the reply sg entries */
18906 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
18907 inbound++;
18908 /* first inbound? reset the offset */
18909 if (inbound == 1)
18910 offset = 0;
18911 bf_set(lpfc_sli4_sge_offset, sgl, offset);
18912 bf_set(lpfc_sli4_sge_type, sgl,
18913 LPFC_SGE_TYPE_DATA);
18914 offset += bde.tus.f.bdeSize;
18915 break;
18916 case CMD_FCP_TRSP64_WQE:
18917 bf_set(lpfc_sli4_sge_offset, sgl, 0);
18918 bf_set(lpfc_sli4_sge_type, sgl,
18919 LPFC_SGE_TYPE_DATA);
18920 break;
18921 case CMD_FCP_TSEND64_WQE:
18922 case CMD_FCP_TRECEIVE64_WQE:
18923 bf_set(lpfc_sli4_sge_type, sgl,
18924 bpl->tus.f.bdeFlags);
18925 if (i < 3)
18926 offset = 0;
18927 else
18928 offset += bde.tus.f.bdeSize;
18929 bf_set(lpfc_sli4_sge_offset, sgl, offset);
18930 break;
18932 sgl->word2 = cpu_to_le32(sgl->word2);
18933 bpl++;
18934 sgl++;
18936 } else if (wqe->gen_req.bde.tus.f.bdeFlags == BUFF_TYPE_BDE_64) {
18937 /* The addrHigh and addrLow fields of the BDE have not
18938 * been byteswapped yet so they need to be swapped
18939 * before putting them in the sgl.
18941 sgl->addr_hi = cpu_to_le32(wqe->gen_req.bde.addrHigh);
18942 sgl->addr_lo = cpu_to_le32(wqe->gen_req.bde.addrLow);
18943 sgl->word2 = le32_to_cpu(sgl->word2);
18944 bf_set(lpfc_sli4_sge_last, sgl, 1);
18945 sgl->word2 = cpu_to_le32(sgl->word2);
18946 sgl->sge_len = cpu_to_le32(wqe->gen_req.bde.tus.f.bdeSize);
18948 return sglq->sli4_xritag;
18952 * lpfc_sli4_issue_wqe - Issue an SLI4 Work Queue Entry (WQE)
18953 * @phba: Pointer to HBA context object.
18954 * @ring_number: Base sli ring number
18955 * @pwqe: Pointer to command WQE.
18958 lpfc_sli4_issue_wqe(struct lpfc_hba *phba, uint32_t ring_number,
18959 struct lpfc_iocbq *pwqe)
18961 union lpfc_wqe *wqe = &pwqe->wqe;
18962 struct lpfc_nvmet_rcv_ctx *ctxp;
18963 struct lpfc_queue *wq;
18964 struct lpfc_sglq *sglq;
18965 struct lpfc_sli_ring *pring;
18966 unsigned long iflags;
18967 uint32_t ret = 0;
18969 /* NVME_LS and NVME_LS ABTS requests. */
18970 if (pwqe->iocb_flag & LPFC_IO_NVME_LS) {
18971 pring = phba->sli4_hba.nvmels_wq->pring;
18972 spin_lock_irqsave(&pring->ring_lock, iflags);
18973 sglq = __lpfc_sli_get_els_sglq(phba, pwqe);
18974 if (!sglq) {
18975 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18976 return WQE_BUSY;
18978 pwqe->sli4_lxritag = sglq->sli4_lxritag;
18979 pwqe->sli4_xritag = sglq->sli4_xritag;
18980 if (lpfc_wqe_bpl2sgl(phba, pwqe, sglq) == NO_XRI) {
18981 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18982 return WQE_ERROR;
18984 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
18985 pwqe->sli4_xritag);
18986 ret = lpfc_sli4_wq_put(phba->sli4_hba.nvmels_wq, wqe);
18987 if (ret) {
18988 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18989 return ret;
18992 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
18993 spin_unlock_irqrestore(&pring->ring_lock, iflags);
18994 return 0;
18997 /* NVME_FCREQ and NVME_ABTS requests */
18998 if (pwqe->iocb_flag & LPFC_IO_NVME) {
18999 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
19000 pring = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx]->pring;
19002 spin_lock_irqsave(&pring->ring_lock, iflags);
19003 wq = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx];
19004 bf_set(wqe_cqid, &wqe->generic.wqe_com,
19005 phba->sli4_hba.nvme_cq[pwqe->hba_wqidx]->queue_id);
19006 ret = lpfc_sli4_wq_put(wq, wqe);
19007 if (ret) {
19008 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19009 return ret;
19011 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19012 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19013 return 0;
19016 /* NVMET requests */
19017 if (pwqe->iocb_flag & LPFC_IO_NVMET) {
19018 /* Get the IO distribution (hba_wqidx) for WQ assignment. */
19019 pring = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx]->pring;
19021 spin_lock_irqsave(&pring->ring_lock, iflags);
19022 ctxp = pwqe->context2;
19023 sglq = ctxp->ctxbuf->sglq;
19024 if (pwqe->sli4_xritag == NO_XRI) {
19025 pwqe->sli4_lxritag = sglq->sli4_lxritag;
19026 pwqe->sli4_xritag = sglq->sli4_xritag;
19028 bf_set(wqe_xri_tag, &pwqe->wqe.xmit_bls_rsp.wqe_com,
19029 pwqe->sli4_xritag);
19030 wq = phba->sli4_hba.nvme_wq[pwqe->hba_wqidx];
19031 bf_set(wqe_cqid, &wqe->generic.wqe_com,
19032 phba->sli4_hba.nvme_cq[pwqe->hba_wqidx]->queue_id);
19033 ret = lpfc_sli4_wq_put(wq, wqe);
19034 if (ret) {
19035 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19036 return ret;
19038 lpfc_sli_ringtxcmpl_put(phba, pring, pwqe);
19039 spin_unlock_irqrestore(&pring->ring_lock, iflags);
19040 return 0;
19042 return WQE_ERROR;